diff --git a/modules/eks-managed-node-group/main.tf b/modules/eks-managed-node-group/main.tf
index bbe02105d2..270b7c8ac7 100644
--- a/modules/eks-managed-node-group/main.tf
+++ b/modules/eks-managed-node-group/main.tf
@@ -38,7 +38,7 @@ resource "aws_launch_template" "this" {
   count = var.create && var.create_launch_template ? 1 : 0
 
   name        = var.launch_template_use_name_prefix ? null : local.launch_template_name_int
-  name_prefix = var.launch_template_use_name_prefix ? "${local.launch_template_name_int}-" : null
+  name_prefix = var.launch_template_use_name_prefix ? "${local.launch_template_name_int}${var.prefix_separator}" : null
   description = var.launch_template_description
 
   ebs_optimized = var.ebs_optimized
@@ -276,7 +276,7 @@ resource "aws_eks_node_group" "this" {
 
   # Optional
   node_group_name        = var.use_name_prefix ? null : var.name
-  node_group_name_prefix = var.use_name_prefix ? "${var.name}-" : null
+  node_group_name_prefix = var.use_name_prefix ? "${var.name}${var.prefix_separator}" : null
 
   # https://docs.aws.amazon.com/eks/latest/userguide/launch-templates.html#launch-template-custom-ami
   ami_type        = var.ami_id != "" ? null : var.ami_type
@@ -354,7 +354,7 @@ resource "aws_security_group" "this" {
   count = local.create_security_group ? 1 : 0
 
   name        = var.security_group_use_name_prefix ? null : local.security_group_name
-  name_prefix = var.security_group_use_name_prefix ? "${local.security_group_name}-" : null
+  name_prefix = var.security_group_use_name_prefix ? "${local.security_group_name}${var.prefix_separator}" : null
   description = var.security_group_description
   vpc_id      = var.vpc_id
 
@@ -417,7 +417,7 @@ resource "aws_iam_role" "this" {
   count = var.create && var.create_iam_role ? 1 : 0
 
   name        = var.iam_role_use_name_prefix ? null : local.iam_role_name
-  name_prefix = var.iam_role_use_name_prefix ? "${local.iam_role_name}-" : null
+  name_prefix = var.iam_role_use_name_prefix ? "${local.iam_role_name}${var.prefix_separator}" : null
   path        = var.iam_role_path
   description = var.iam_role_description
 
diff --git a/modules/eks-managed-node-group/variables.tf b/modules/eks-managed-node-group/variables.tf
index ddefdcf655..327833ed65 100644
--- a/modules/eks-managed-node-group/variables.tf
+++ b/modules/eks-managed-node-group/variables.tf
@@ -272,6 +272,12 @@ variable "name" {
   default     = ""
 }
 
+variable "prefix_separator" {
+  description = "The separator to use between the prefix and the generated timestamp for resource names"
+  type        = string
+  default     = "-"
+}
+
 variable "use_name_prefix" {
   description = "Determines whether to use `name` as is or create a unique name beginning with the `name` as the prefix"
   type        = bool
diff --git a/modules/fargate-profile/main.tf b/modules/fargate-profile/main.tf
index 554b0e8814..f999f73457 100644
--- a/modules/fargate-profile/main.tf
+++ b/modules/fargate-profile/main.tf
@@ -32,7 +32,7 @@ resource "aws_iam_role" "this" {
   count = var.create && var.create_iam_role ? 1 : 0
 
   name        = var.iam_role_use_name_prefix ? null : local.iam_role_name
-  name_prefix = var.iam_role_use_name_prefix ? "${local.iam_role_name}-" : null
+  name_prefix = var.iam_role_use_name_prefix ? "${local.iam_role_name}${var.prefix_separator}" : null
   path        = var.iam_role_path
   description = var.iam_role_description
 
diff --git a/modules/fargate-profile/variables.tf b/modules/fargate-profile/variables.tf
index 5accf35e1b..900e705697 100644
--- a/modules/fargate-profile/variables.tf
+++ b/modules/fargate-profile/variables.tf
@@ -96,6 +96,12 @@ variable "name" {
   default     = ""
 }
 
+variable "prefix_separator" {
+  description = "The separator to use between the prefix and the generated timestamp for resource names"
+  type        = string
+  default     = "-"
+}
+
 variable "subnet_ids" {
   description = "A list of subnet IDs for the EKS Fargate Profile"
   type        = list(string)
diff --git a/modules/self-managed-node-group/main.tf b/modules/self-managed-node-group/main.tf
index 8750892e3c..85dc685183 100644
--- a/modules/self-managed-node-group/main.tf
+++ b/modules/self-managed-node-group/main.tf
@@ -48,7 +48,7 @@ resource "aws_launch_template" "this" {
   count = var.create && var.create_launch_template ? 1 : 0
 
   name        = var.launch_template_use_name_prefix ? null : local.launch_template_name_int
-  name_prefix = var.launch_template_use_name_prefix ? "${local.launch_template_name_int}-" : null
+  name_prefix = var.launch_template_use_name_prefix ? "${local.launch_template_name_int}${var.prefix_separator}" : null
   description = var.launch_template_description
 
   ebs_optimized = var.ebs_optimized
@@ -261,7 +261,7 @@ resource "aws_autoscaling_group" "this" {
   count = var.create ? 1 : 0
 
   name        = var.use_name_prefix ? null : var.name
-  name_prefix = var.use_name_prefix ? "${var.name}-" : null
+  name_prefix = var.use_name_prefix ? "${var.name}${var.prefix_separator}" : null
 
   dynamic "launch_template" {
     for_each = var.use_mixed_instances_policy ? [] : [1]
@@ -453,7 +453,7 @@ resource "aws_security_group" "this" {
   count = local.create_security_group ? 1 : 0
 
   name        = var.security_group_use_name_prefix ? null : local.security_group_name
-  name_prefix = var.security_group_use_name_prefix ? "${local.security_group_name}-" : null
+  name_prefix = var.security_group_use_name_prefix ? "${local.security_group_name}${var.prefix_separator}" : null
   description = var.security_group_description
   vpc_id      = var.vpc_id
 
@@ -519,7 +519,7 @@ resource "aws_iam_role" "this" {
   count = var.create && var.create_iam_instance_profile ? 1 : 0
 
   name        = var.iam_role_use_name_prefix ? null : local.iam_role_name
-  name_prefix = var.iam_role_use_name_prefix ? "${local.iam_role_name}-" : null
+  name_prefix = var.iam_role_use_name_prefix ? "${local.iam_role_name}${var.prefix_separator}" : null
   path        = var.iam_role_path
   description = var.iam_role_description
 
@@ -548,7 +548,7 @@ resource "aws_iam_instance_profile" "this" {
   role = aws_iam_role.this[0].name
 
   name        = var.iam_role_use_name_prefix ? null : local.iam_role_name
-  name_prefix = var.iam_role_use_name_prefix ? "${local.iam_role_name}-" : null
+  name_prefix = var.iam_role_use_name_prefix ? "${local.iam_role_name}${var.prefix_separator}" : null
   path        = var.iam_role_path
 
   lifecycle {
diff --git a/modules/self-managed-node-group/variables.tf b/modules/self-managed-node-group/variables.tf
index 7bcebeaddc..3e0016b4b9 100644
--- a/modules/self-managed-node-group/variables.tf
+++ b/modules/self-managed-node-group/variables.tf
@@ -260,6 +260,12 @@ variable "name" {
   default     = ""
 }
 
+variable "prefix_separator" {
+  description = "The separator to use between the prefix and the generated timestamp for resource names"
+  type        = string
+  default     = "-"
+}
+
 variable "use_name_prefix" {
   description = "Determines whether to use `name` as is or create a unique name beginning with the `name` as the prefix"
   type        = bool