diff --git a/terraform/README.md b/terraform/README.md
index 6c650af3..576744a6 100644
--- a/terraform/README.md
+++ b/terraform/README.md
@@ -587,7 +587,8 @@ terraform apply -var-file=<your_workspace>.tfvars
 | [aws_ami.cyhy_mongo](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/ami) | data source |
 | [aws_ami.dashboard](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/ami) | data source |
 | [aws_ami.nessus](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/ami) | data source |
-| [aws_ami.nmap](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/ami) | data source |
+| [aws_ami.nmap_arm64](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/ami) | data source |
+| [aws_ami.nmap_x86_64](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/ami) | data source |
 | [aws_ami.reporter](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/ami) | data source |
 | [aws_availability_zones.all](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/availability_zones) | data source |
 | [aws_caller_identity.current](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/caller_identity) | data source |
@@ -677,7 +678,7 @@ terraform apply -var-file=<your_workspace>.tfvars
 | nessus\_cyhy\_runner\_disk | The cyhy-runner data volume for the Nessus instance(s). | `string` | `"/dev/xvdb"` | no |
 | nessus\_instance\_count | The number of Nessus instances to create. | `number` | n/a | yes |
 | nmap\_cyhy\_runner\_disk | The cyhy-runner data volume for the Nmap instance(s). | `string` | `"/dev/nvme1n1"` | no |
-| nmap\_instance\_count | The number of Nmap instances to create. | `number` | n/a | yes |
+| nmap\_instance\_count | The number of Nmap instances to create, broken down by architecture. Note that x86\_64 instances will be deployed first, followed by arm64 instances. | `object({ arm64 = number, x86_64 = number })` | n/a | yes |
 | remote\_ssh\_user | The username to use when sshing to the EC2 instances. | `string` | n/a | yes |
 | reporter\_mailer\_override\_filename | This file is used to add/override any Docker composition settings for cyhy-mailer for the reporter EC2 instance.  It must already exist in /var/cyhy/cyhy-mailer. | `string` | `"docker-compose.cyhy.yml"` | no |
 | ses\_aws\_region | The AWS region where SES is configured. | `string` | `"us-east-1"` | no |
diff --git a/terraform/cyhy_mongo_ec2.tf b/terraform/cyhy_mongo_ec2.tf
index 8c4696b0..83878fe5 100644
--- a/terraform/cyhy_mongo_ec2.tf
+++ b/terraform/cyhy_mongo_ec2.tf
@@ -190,7 +190,7 @@ module "cyhy_mongo_ansible_provisioner" {
     "cyhy_commander_jobs_per_nmap_host=${var.commander_config.jobs_per_nmap_host}",
     "cyhy_commander_nessus_hosts=${join(",", formatlist("vulnscan%d", range(1, var.nessus_instance_count + 1)))}",
     "cyhy_commander_next_scan_limit=${var.commander_config.next_scan_limit}",
-    "cyhy_commander_nmap_hosts=${join(",", formatlist("portscan%d", range(1, var.nmap_instance_count + 1)))}",
+    "cyhy_commander_nmap_hosts=${join(",", formatlist("portscan%d", range(1, local.nmap_total_instance_count + 1)))}",
     "cyhy_feeds_aws_region=${var.aws_region}",
     "cyhy_feeds_dmarc_import_aws_region=${var.dmarc_import_aws_region}",
     "cyhy_feeds_dmarc_import_es_role=${var.dmarc_import_es_role_arn}",
diff --git a/terraform/cyhy_nmap_cloud_init.tf b/terraform/cyhy_nmap_cloud_init.tf
index 60333773..a47cdd88 100644
--- a/terraform/cyhy_nmap_cloud_init.tf
+++ b/terraform/cyhy_nmap_cloud_init.tf
@@ -2,7 +2,7 @@
 # volume, and setting the hostname
 
 data "cloudinit_config" "cyhy_nmap_cloud_init_tasks" {
-  count = var.nmap_instance_count
+  count = local.nmap_total_instance_count
 
   base64_encode = true
   gzip          = true
diff --git a/terraform/cyhy_nmap_ec2.tf b/terraform/cyhy_nmap_ec2.tf
index 86bbdfb0..0face26c 100644
--- a/terraform/cyhy_nmap_ec2.tf
+++ b/terraform/cyhy_nmap_ec2.tf
@@ -1,4 +1,26 @@
-data "aws_ami" "nmap" {
+data "aws_ami" "nmap_arm64" {
+  filter {
+    name = "name"
+    values = [
+      "${var.ami_prefixes.nmap}-nmap-hvm-*-arm64-ebs",
+    ]
+  }
+
+  filter {
+    name   = "virtualization-type"
+    values = ["hvm"]
+  }
+
+  filter {
+    name   = "root-device-type"
+    values = ["ebs"]
+  }
+
+  owners      = [data.aws_caller_identity.current.account_id] # This is us
+  most_recent = true
+}
+
+data "aws_ami" "nmap_x86_64" {
   filter {
     name = "name"
     values = [
@@ -21,9 +43,9 @@ data "aws_ami" "nmap" {
 }
 
 resource "aws_instance" "cyhy_nmap" {
-  ami           = data.aws_ami.nmap.id
-  instance_type = local.production_workspace ? "t3.medium" : "t3.small"
-  count         = var.nmap_instance_count
+  ami           = count.index < var.nmap_instance_count.x86_64 ? data.aws_ami.nmap_x86_64.id : data.aws_ami.nmap_arm64.id
+  instance_type = count.index < var.nmap_instance_count.x86_64 ? (local.production_workspace ? "t3.medium" : "t3.small") : (local.production_workspace ? "t4g.medium" : "t4g.small")
+  count         = local.nmap_total_instance_count
 
   availability_zone = "${var.aws_region}${var.aws_availability_zone}"
 
@@ -83,7 +105,7 @@ resource "aws_instance" "cyhy_nmap" {
 # manually and are intended to be a public IP address that rarely
 # changes.
 data "aws_eip" "cyhy_nmap_eips" {
-  count = local.production_workspace ? var.nmap_instance_count : 0
+  count = local.production_workspace ? local.nmap_total_instance_count : 0
   public_ip = cidrhost(
     var.cyhy_elastic_ip_cidr_block,
     var.cyhy_portscan_first_elastic_ip_offset + count.index,
@@ -95,7 +117,7 @@ data "aws_eip" "cyhy_nmap_eips" {
 # workspaces and are randomly-assigned public IP address for temporary
 # use.
 resource "aws_eip" "cyhy_nmap_random_eips" {
-  count = local.production_workspace ? 0 : var.nmap_instance_count
+  count = local.production_workspace ? 0 : local.nmap_total_instance_count
 
   domain = "vpc"
 
@@ -121,7 +143,7 @@ resource "aws_eip" "cyhy_nmap_random_eips" {
 #
 # VOTED WORST LINE OF TERRAFORM 2018 (so far) BY DEV TEAM WEEKLY!!
 resource "aws_eip_association" "cyhy_nmap_eip_assocs" {
-  count       = var.nmap_instance_count
+  count       = local.nmap_total_instance_count
   instance_id = aws_instance.cyhy_nmap[count.index].id
   allocation_id = element(
     coalescelist(
@@ -143,7 +165,7 @@ resource "aws_eip_association" "cyhy_nmap_eip_assocs" {
 # inside of the lifecycle block
 # (https://github.com/hashicorp/terraform/issues/3116).
 resource "aws_ebs_volume" "nmap_cyhy_runner_data" {
-  count             = var.nmap_instance_count
+  count             = local.nmap_total_instance_count
   availability_zone = "${var.aws_region}${var.aws_availability_zone}"
 
   # availability_zone = "${element(data.aws_availability_zones.all.names, count.index)}"
@@ -159,7 +181,7 @@ resource "aws_ebs_volume" "nmap_cyhy_runner_data" {
 }
 
 resource "aws_volume_attachment" "nmap_cyhy_runner_data_attachment" {
-  count       = var.nmap_instance_count
+  count       = local.nmap_total_instance_count
   device_name = "/dev/xvdb"
   volume_id   = aws_ebs_volume.nmap_cyhy_runner_data[count.index].id
   instance_id = aws_instance.cyhy_nmap[count.index].id
diff --git a/terraform/locals.tf b/terraform/locals.tf
index 6f325d02..5e75bf93 100644
--- a/terraform/locals.tf
+++ b/terraform/locals.tf
@@ -130,8 +130,11 @@ locals {
   # NOTE: there is an assumption that subnets are /24 or smaller in
   # the reverse zone names.
 
+  # Total number of Port Scanners
+  nmap_total_instance_count = var.nmap_instance_count.arm64 + var.nmap_instance_count.x86_64
+
   # Port Scanners DNS entries
-  count_port_scanner = var.nmap_instance_count
+  count_port_scanner = local.nmap_total_instance_count
 
   # Vulnerability Scanners DNS entries
   count_vuln_scanner = var.nessus_instance_count
diff --git a/terraform/variables.tf b/terraform/variables.tf
index 228ed8a9..ce5b14bc 100644
--- a/terraform/variables.tf
+++ b/terraform/variables.tf
@@ -59,9 +59,9 @@ variable "nessus_instance_count" {
 }
 
 variable "nmap_instance_count" {
-  description = "The number of Nmap instances to create."
+  description = "The number of Nmap instances to create, broken down by architecture. Note that x86_64 instances will be deployed first, followed by arm64 instances."
   nullable    = false
-  type        = number
+  type        = object({ arm64 = number, x86_64 = number })
 }
 
 variable "remote_ssh_user" {