diff --git a/examples/complete/main.tf b/examples/complete/main.tf
index 465e790..be35845 100644
--- a/examples/complete/main.tf
+++ b/examples/complete/main.tf
@@ -180,6 +180,48 @@ module "ec2_ignore_ami_changes" {
   tags = local.tags
 }
 
+################################################################################
+# EC2 Module - with ignore AMI changes and ignore user_data changes
+################################################################################
+
+module "ec2_ignore_ami_user_data_changes" {
+  source = "../../"
+
+  name = local.name
+
+  ignore_ami_changes       = true
+  ignore_user_data_changes = true
+
+  ami                    = data.aws_ami.amazon_linux.id
+  instance_type          = "t2.micro"
+  availability_zone      = element(module.vpc.azs, 0)
+  subnet_id              = element(module.vpc.private_subnets, 0)
+  vpc_security_group_ids = [module.security_group.security_group_id]
+
+  tags = local.tags
+}
+
+################################################################################
+# EC2 Module - with ignore user_data changes
+################################################################################
+
+module "ec2_ignore_user_data_changes" {
+  source = "../../"
+
+  name = local.name
+
+  ignore_user_data_changes = true
+
+  ami                    = data.aws_ami.amazon_linux.id
+  instance_type          = "t2.micro"
+  availability_zone      = element(module.vpc.azs, 0)
+  subnet_id              = element(module.vpc.private_subnets, 0)
+  vpc_security_group_ids = [module.security_group.security_group_id]
+
+  tags = local.tags
+}
+
+
 ################################################################################
 # EC2 Module - multiple instances with `for_each`
 ################################################################################
diff --git a/main.tf b/main.tf
index 749e67d..f46dd9b 100644
--- a/main.tf
+++ b/main.tf
@@ -19,7 +19,7 @@ data "aws_ssm_parameter" "this" {
 ################################################################################
 
 resource "aws_instance" "this" {
-  count = local.create && !var.ignore_ami_changes && !var.create_spot_instance ? 1 : 0
+  count = local.create && !var.ignore_ami_changes && !var.ignore_user_data_changes && !var.create_spot_instance ? 1 : 0
 
   ami                  = local.ami
   instance_type        = var.instance_type
@@ -197,7 +197,7 @@ resource "aws_instance" "this" {
 ################################################################################
 
 resource "aws_instance" "ignore_ami" {
-  count = local.create && var.ignore_ami_changes && !var.create_spot_instance ? 1 : 0
+  count = local.create && var.ignore_ami_changes && !var.ignore_user_data_changes && !var.create_spot_instance ? 1 : 0
 
   ami                  = local.ami
   instance_type        = var.instance_type
@@ -376,6 +376,373 @@ resource "aws_instance" "ignore_ami" {
   }
 }
 
+################################################################################
+# Instance - Ignore UserData Changes
+################################################################################
+
+resource "aws_instance" "ignore_user_data" {
+  count = local.create && !var.ignore_ami_changes && var.ignore_user_data_changes && !var.create_spot_instance ? 1 : 0
+
+  ami                  = local.ami
+  instance_type        = var.instance_type
+  cpu_core_count       = var.cpu_core_count
+  cpu_threads_per_core = var.cpu_threads_per_core
+  hibernation          = var.hibernation
+
+  user_data                   = var.user_data
+  user_data_base64            = var.user_data_base64
+  user_data_replace_on_change = var.user_data_replace_on_change
+
+  availability_zone      = var.availability_zone
+  subnet_id              = var.subnet_id
+  vpc_security_group_ids = var.vpc_security_group_ids
+
+  key_name             = var.key_name
+  monitoring           = var.monitoring
+  get_password_data    = var.get_password_data
+  iam_instance_profile = var.create_iam_instance_profile ? aws_iam_instance_profile.this[0].name : var.iam_instance_profile
+
+  associate_public_ip_address = var.associate_public_ip_address
+  private_ip                  = var.private_ip
+  secondary_private_ips       = var.secondary_private_ips
+  ipv6_address_count          = var.ipv6_address_count
+  ipv6_addresses              = var.ipv6_addresses
+
+  ebs_optimized = var.ebs_optimized
+
+  dynamic "cpu_options" {
+    for_each = length(var.cpu_options) > 0 ? [var.cpu_options] : []
+
+    content {
+      core_count       = try(cpu_options.value.core_count, null)
+      threads_per_core = try(cpu_options.value.threads_per_core, null)
+      amd_sev_snp      = try(cpu_options.value.amd_sev_snp, null)
+    }
+  }
+
+  dynamic "capacity_reservation_specification" {
+    for_each = length(var.capacity_reservation_specification) > 0 ? [var.capacity_reservation_specification] : []
+
+    content {
+      capacity_reservation_preference = try(capacity_reservation_specification.value.capacity_reservation_preference, null)
+
+      dynamic "capacity_reservation_target" {
+        for_each = try([capacity_reservation_specification.value.capacity_reservation_target], [])
+
+        content {
+          capacity_reservation_id                 = try(capacity_reservation_target.value.capacity_reservation_id, null)
+          capacity_reservation_resource_group_arn = try(capacity_reservation_target.value.capacity_reservation_resource_group_arn, null)
+        }
+      }
+    }
+  }
+
+  dynamic "root_block_device" {
+    for_each = var.root_block_device
+
+    content {
+      delete_on_termination = try(root_block_device.value.delete_on_termination, null)
+      encrypted             = try(root_block_device.value.encrypted, null)
+      iops                  = try(root_block_device.value.iops, null)
+      kms_key_id            = lookup(root_block_device.value, "kms_key_id", null)
+      volume_size           = try(root_block_device.value.volume_size, null)
+      volume_type           = try(root_block_device.value.volume_type, null)
+      throughput            = try(root_block_device.value.throughput, null)
+      tags                  = try(root_block_device.value.tags, null)
+    }
+  }
+
+  dynamic "ebs_block_device" {
+    for_each = var.ebs_block_device
+
+    content {
+      delete_on_termination = try(ebs_block_device.value.delete_on_termination, null)
+      device_name           = ebs_block_device.value.device_name
+      encrypted             = try(ebs_block_device.value.encrypted, null)
+      iops                  = try(ebs_block_device.value.iops, null)
+      kms_key_id            = lookup(ebs_block_device.value, "kms_key_id", null)
+      snapshot_id           = lookup(ebs_block_device.value, "snapshot_id", null)
+      volume_size           = try(ebs_block_device.value.volume_size, null)
+      volume_type           = try(ebs_block_device.value.volume_type, null)
+      throughput            = try(ebs_block_device.value.throughput, null)
+      tags                  = try(ebs_block_device.value.tags, null)
+    }
+  }
+
+  dynamic "ephemeral_block_device" {
+    for_each = var.ephemeral_block_device
+
+    content {
+      device_name  = ephemeral_block_device.value.device_name
+      no_device    = try(ephemeral_block_device.value.no_device, null)
+      virtual_name = try(ephemeral_block_device.value.virtual_name, null)
+    }
+  }
+
+  dynamic "metadata_options" {
+    for_each = length(var.metadata_options) > 0 ? [var.metadata_options] : []
+
+    content {
+      http_endpoint               = try(metadata_options.value.http_endpoint, "enabled")
+      http_tokens                 = try(metadata_options.value.http_tokens, "optional")
+      http_put_response_hop_limit = try(metadata_options.value.http_put_response_hop_limit, 1)
+      instance_metadata_tags      = try(metadata_options.value.instance_metadata_tags, null)
+    }
+  }
+
+  dynamic "network_interface" {
+    for_each = var.network_interface
+
+    content {
+      device_index          = network_interface.value.device_index
+      network_interface_id  = lookup(network_interface.value, "network_interface_id", null)
+      delete_on_termination = try(network_interface.value.delete_on_termination, false)
+    }
+  }
+
+  dynamic "private_dns_name_options" {
+    for_each = length(var.private_dns_name_options) > 0 ? [var.private_dns_name_options] : []
+
+    content {
+      hostname_type                        = try(private_dns_name_options.value.hostname_type, null)
+      enable_resource_name_dns_a_record    = try(private_dns_name_options.value.enable_resource_name_dns_a_record, null)
+      enable_resource_name_dns_aaaa_record = try(private_dns_name_options.value.enable_resource_name_dns_aaaa_record, null)
+    }
+  }
+
+  dynamic "launch_template" {
+    for_each = length(var.launch_template) > 0 ? [var.launch_template] : []
+
+    content {
+      id      = lookup(var.launch_template, "id", null)
+      name    = lookup(var.launch_template, "name", null)
+      version = lookup(var.launch_template, "version", null)
+    }
+  }
+
+  dynamic "maintenance_options" {
+    for_each = length(var.maintenance_options) > 0 ? [var.maintenance_options] : []
+
+    content {
+      auto_recovery = try(maintenance_options.value.auto_recovery, null)
+    }
+  }
+
+  enclave_options {
+    enabled = var.enclave_options_enabled
+  }
+
+  source_dest_check                    = length(var.network_interface) > 0 ? null : var.source_dest_check
+  disable_api_termination              = var.disable_api_termination
+  disable_api_stop                     = var.disable_api_stop
+  instance_initiated_shutdown_behavior = var.instance_initiated_shutdown_behavior
+  placement_group                      = var.placement_group
+  tenancy                              = var.tenancy
+  host_id                              = var.host_id
+
+  credit_specification {
+    cpu_credits = local.is_t_instance_type ? var.cpu_credits : null
+  }
+
+  timeouts {
+    create = try(var.timeouts.create, null)
+    update = try(var.timeouts.update, null)
+    delete = try(var.timeouts.delete, null)
+  }
+
+  tags        = merge({ "Name" = var.name }, var.instance_tags, var.tags)
+  volume_tags = var.enable_volume_tags ? merge({ "Name" = var.name }, var.volume_tags) : null
+
+  lifecycle {
+    ignore_changes = [
+      user_data
+    ]
+  }
+}
+
+
+################################################################################
+# Instance - Ignore AMI Changes and user_data Changes 
+################################################################################
+
+resource "aws_instance" "ignore_ami_userdata" {
+  count = local.create && var.ignore_ami_changes && var.ignore_user_data_changes && !var.create_spot_instance ? 1 : 0
+
+  ami                  = local.ami
+  instance_type        = var.instance_type
+  cpu_core_count       = var.cpu_core_count
+  cpu_threads_per_core = var.cpu_threads_per_core
+  hibernation          = var.hibernation
+
+  user_data                   = var.user_data
+  user_data_base64            = var.user_data_base64
+  user_data_replace_on_change = var.user_data_replace_on_change
+
+  availability_zone      = var.availability_zone
+  subnet_id              = var.subnet_id
+  vpc_security_group_ids = var.vpc_security_group_ids
+
+  key_name             = var.key_name
+  monitoring           = var.monitoring
+  get_password_data    = var.get_password_data
+  iam_instance_profile = var.create_iam_instance_profile ? aws_iam_instance_profile.this[0].name : var.iam_instance_profile
+
+  associate_public_ip_address = var.associate_public_ip_address
+  private_ip                  = var.private_ip
+  secondary_private_ips       = var.secondary_private_ips
+  ipv6_address_count          = var.ipv6_address_count
+  ipv6_addresses              = var.ipv6_addresses
+
+  ebs_optimized = var.ebs_optimized
+
+  dynamic "cpu_options" {
+    for_each = length(var.cpu_options) > 0 ? [var.cpu_options] : []
+
+    content {
+      core_count       = try(cpu_options.value.core_count, null)
+      threads_per_core = try(cpu_options.value.threads_per_core, null)
+      amd_sev_snp      = try(cpu_options.value.amd_sev_snp, null)
+    }
+  }
+
+  dynamic "capacity_reservation_specification" {
+    for_each = length(var.capacity_reservation_specification) > 0 ? [var.capacity_reservation_specification] : []
+
+    content {
+      capacity_reservation_preference = try(capacity_reservation_specification.value.capacity_reservation_preference, null)
+
+      dynamic "capacity_reservation_target" {
+        for_each = try([capacity_reservation_specification.value.capacity_reservation_target], [])
+
+        content {
+          capacity_reservation_id                 = try(capacity_reservation_target.value.capacity_reservation_id, null)
+          capacity_reservation_resource_group_arn = try(capacity_reservation_target.value.capacity_reservation_resource_group_arn, null)
+        }
+      }
+    }
+  }
+
+  dynamic "root_block_device" {
+    for_each = var.root_block_device
+
+    content {
+      delete_on_termination = try(root_block_device.value.delete_on_termination, null)
+      encrypted             = try(root_block_device.value.encrypted, null)
+      iops                  = try(root_block_device.value.iops, null)
+      kms_key_id            = lookup(root_block_device.value, "kms_key_id", null)
+      volume_size           = try(root_block_device.value.volume_size, null)
+      volume_type           = try(root_block_device.value.volume_type, null)
+      throughput            = try(root_block_device.value.throughput, null)
+      tags                  = try(root_block_device.value.tags, null)
+    }
+  }
+
+  dynamic "ebs_block_device" {
+    for_each = var.ebs_block_device
+
+    content {
+      delete_on_termination = try(ebs_block_device.value.delete_on_termination, null)
+      device_name           = ebs_block_device.value.device_name
+      encrypted             = try(ebs_block_device.value.encrypted, null)
+      iops                  = try(ebs_block_device.value.iops, null)
+      kms_key_id            = lookup(ebs_block_device.value, "kms_key_id", null)
+      snapshot_id           = lookup(ebs_block_device.value, "snapshot_id", null)
+      volume_size           = try(ebs_block_device.value.volume_size, null)
+      volume_type           = try(ebs_block_device.value.volume_type, null)
+      throughput            = try(ebs_block_device.value.throughput, null)
+      tags                  = try(ebs_block_device.value.tags, null)
+    }
+  }
+
+  dynamic "ephemeral_block_device" {
+    for_each = var.ephemeral_block_device
+
+    content {
+      device_name  = ephemeral_block_device.value.device_name
+      no_device    = try(ephemeral_block_device.value.no_device, null)
+      virtual_name = try(ephemeral_block_device.value.virtual_name, null)
+    }
+  }
+
+  dynamic "metadata_options" {
+    for_each = length(var.metadata_options) > 0 ? [var.metadata_options] : []
+
+    content {
+      http_endpoint               = try(metadata_options.value.http_endpoint, "enabled")
+      http_tokens                 = try(metadata_options.value.http_tokens, "optional")
+      http_put_response_hop_limit = try(metadata_options.value.http_put_response_hop_limit, 1)
+      instance_metadata_tags      = try(metadata_options.value.instance_metadata_tags, null)
+    }
+  }
+
+  dynamic "network_interface" {
+    for_each = var.network_interface
+
+    content {
+      device_index          = network_interface.value.device_index
+      network_interface_id  = lookup(network_interface.value, "network_interface_id", null)
+      delete_on_termination = try(network_interface.value.delete_on_termination, false)
+    }
+  }
+
+  dynamic "private_dns_name_options" {
+    for_each = length(var.private_dns_name_options) > 0 ? [var.private_dns_name_options] : []
+
+    content {
+      hostname_type                        = try(private_dns_name_options.value.hostname_type, null)
+      enable_resource_name_dns_a_record    = try(private_dns_name_options.value.enable_resource_name_dns_a_record, null)
+      enable_resource_name_dns_aaaa_record = try(private_dns_name_options.value.enable_resource_name_dns_aaaa_record, null)
+    }
+  }
+
+  dynamic "launch_template" {
+    for_each = length(var.launch_template) > 0 ? [var.launch_template] : []
+
+    content {
+      id      = lookup(var.launch_template, "id", null)
+      name    = lookup(var.launch_template, "name", null)
+      version = lookup(var.launch_template, "version", null)
+    }
+  }
+
+  dynamic "maintenance_options" {
+    for_each = length(var.maintenance_options) > 0 ? [var.maintenance_options] : []
+
+    content {
+      auto_recovery = try(maintenance_options.value.auto_recovery, null)
+    }
+  }
+
+  enclave_options {
+    enabled = var.enclave_options_enabled
+  }
+
+  source_dest_check                    = length(var.network_interface) > 0 ? null : var.source_dest_check
+  disable_api_termination              = var.disable_api_termination
+  disable_api_stop                     = var.disable_api_stop
+  instance_initiated_shutdown_behavior = var.instance_initiated_shutdown_behavior
+  placement_group                      = var.placement_group
+  tenancy                              = var.tenancy
+  host_id                              = var.host_id
+
+  credit_specification {
+    cpu_credits = local.is_t_instance_type ? var.cpu_credits : null
+  }
+
+  timeouts {
+    create = try(var.timeouts.create, null)
+    update = try(var.timeouts.update, null)
+    delete = try(var.timeouts.delete, null)
+  }
+
+  tags        = merge({ "Name" = var.name }, var.instance_tags, var.tags)
+  volume_tags = var.enable_volume_tags ? merge({ "Name" = var.name }, var.volume_tags) : null
+
+  lifecycle {
+    ignore_changes = [ami, user_data]
+  }
+}
+
 ################################################################################
 # Spot Instance
 ################################################################################
diff --git a/variables.tf b/variables.tf
index 38a1b5b..404cc87 100644
--- a/variables.tf
+++ b/variables.tf
@@ -28,6 +28,12 @@ variable "ignore_ami_changes" {
   default     = false
 }
 
+variable "ignore_user_data_changes" {
+  description = "Whether changes to the userdata should be ignored by Terraform. Note - changing this value will result in the replacement of the instance"
+  type        = bool
+  default     = false
+}
+
 variable "associate_public_ip_address" {
   description = "Whether to associate a public IP address with an instance in a VPC"
   type        = bool