diff --git a/.changelog/46880.txt b/.changelog/46880.txt
new file mode 100644
index 000000000000..becd77ab278a
--- /dev/null
+++ b/.changelog/46880.txt
@@ -0,0 +1,3 @@
+```release-note:enhancement
+resource/aws_odb_cloud_vm_cluster: Add `system_version` argument
+```
diff --git a/internal/service/odb/cloud_vm_cluster.go b/internal/service/odb/cloud_vm_cluster.go
index c6589a11aaa3..19110c2b7478 100644
--- a/internal/service/odb/cloud_vm_cluster.go
+++ b/internal/service/odb/cloud_vm_cluster.go
@@ -370,11 +370,13 @@ func (r *resourceCloudVmCluster) Schema(ctx context.Context, req resource.Schema
 				Description: "The local node storage allocated to the VM cluster, in gigabytes (GB).",
 			},
 			"system_version": schema.StringAttribute{
+				Optional: true,
 				Computed: true,
 				PlanModifiers: []planmodifier.String{
+					stringplanmodifier.RequiresReplace(),
 					stringplanmodifier.UseStateForUnknown(),
 				},
-				Description: "The operating system version of the image chosen for the VM cluster.",
+				Description: "The operating system version of the image for the VM cluster. To get the list of valid values, use the ListSystemVersions operation, specifying the GI version and Exadata infrastructure shape. If not specified, the default system version is used. Changing this will create a new resource.",
 			},
 			"scan_listener_port_tcp": schema.Int32Attribute{
 				Computed: true,
diff --git a/internal/service/odb/cloud_vm_cluster_test.go b/internal/service/odb/cloud_vm_cluster_test.go
index 597c11da7248..8d85a798f6e0 100644
--- a/internal/service/odb/cloud_vm_cluster_test.go
+++ b/internal/service/odb/cloud_vm_cluster_test.go
@@ -332,6 +332,44 @@ func TestAccODBCloudVmCluster_usingARN(t *testing.T) {
 	})
 }
 
+func TestAccODBCloudVmCluster_systemVersion(t *testing.T) {
+	ctx := acctest.Context(t)
+	if testing.Short() {
+		t.Skip("skipping long-running test in short mode")
+	}
+	var cloudvmcluster odbtypes.CloudVmCluster
+	vmcClusterDisplayName := sdkacctest.RandomWithPrefix(vmClusterTestEntity.vmClusterDisplayNamePrefix)
+	publicKey, _, err := sdkacctest.RandSSHKeyPair(acctest.DefaultEmailAddress)
+	if err != nil {
+		t.Fatal(err)
+		return
+	}
+	resourceName := "aws_odb_cloud_vm_cluster.test"
+	resource.ParallelTest(t, resource.TestCase{
+		PreCheck: func() {
+			acctest.PreCheck(ctx, t)
+			vmClusterTestEntity.testAccPreCheck(ctx, t)
+		},
+		ErrorCheck:               acctest.ErrorCheck(t, names.ODBServiceID),
+		ProtoV5ProviderFactories: acctest.ProtoV5ProviderFactories,
+		CheckDestroy:             vmClusterTestEntity.testAccCheckCloudVmClusterDestroy(ctx),
+		Steps: []resource.TestStep{
+			{
+				Config: vmClusterTestEntity.cloudVmClusterWithSystemVersion(vmcClusterDisplayName, publicKey),
+				Check: resource.ComposeAggregateTestCheckFunc(
+					vmClusterTestEntity.testAccCheckCloudVmClusterExists(ctx, resourceName, &cloudvmcluster),
+					resource.TestCheckResourceAttr(resourceName, "system_version", "25.1.14.0.0.260206"),
+				),
+			},
+			{
+				ResourceName:      resourceName,
+				ImportState:       true,
+				ImportStateVerify: true,
+			},
+		},
+	})
+}
+
 func TestAccODBCloudVmCluster_variables(t *testing.T) {
 	ctx := acctest.Context(t)
 	if testing.Short() {
@@ -573,6 +611,49 @@ resource "aws_odb_cloud_vm_cluster" "test" {
 	return res
 }
 
+func (cloudVmClusterResourceTest) cloudVmClusterWithSystemVersion(vmClusterDisplayName, sshKey string) string {
+	exaInfraDisplayName := sdkacctest.RandomWithPrefix(vmClusterTestEntity.exaInfraDisplayNamePrefix)
+	odbNetDisplayName := sdkacctest.RandomWithPrefix(vmClusterTestEntity.odbNetDisplayNamePrefix)
+	exaInfra := vmClusterTestEntity.exaInfra(exaInfraDisplayName)
+	odbNet := vmClusterTestEntity.oracleDBNetwork(odbNetDisplayName)
+
+	res := fmt.Sprintf(`
+
+%s
+
+%s
+
+
+data "aws_odb_db_servers" "test" {
+  cloud_exadata_infrastructure_id = aws_odb_cloud_exadata_infrastructure.test.id
+}
+
+resource "aws_odb_cloud_vm_cluster" "test" {
+  display_name                    = %[3]q
+  cloud_exadata_infrastructure_id = aws_odb_cloud_exadata_infrastructure.test.id
+  cpu_core_count                  = 6
+  gi_version                      = "23.0.0.0"
+  hostname_prefix                 = "apollo12"
+  ssh_public_keys                 = ["%[4]s"]
+  odb_network_id                  = aws_odb_network.test.id
+  is_local_backup_enabled         = true
+  is_sparse_diskgroup_enabled     = true
+  license_model                   = "LICENSE_INCLUDED"
+  data_storage_size_in_tbs        = 20.0
+  db_servers                      = [for db_server in data.aws_odb_db_servers.test.db_servers : db_server.id]
+  db_node_storage_size_in_gbs     = 120.0
+  memory_size_in_gbs              = 60
+  system_version                  = "25.1.14.0.0.260206"
+  data_collection_options {
+    is_diagnostics_events_enabled = false
+    is_health_monitoring_enabled  = false
+    is_incident_logs_enabled      = false
+  }
+}
+`, exaInfra, odbNet, vmClusterDisplayName, sshKey)
+	return res
+}
+
 func (cloudVmClusterResourceTest) exaInfra(rName string) string {
 	resource := fmt.Sprintf(`
 resource "aws_odb_cloud_exadata_infrastructure" "test" {
diff --git a/website/docs/r/odb_cloud_vm_cluster.html.markdown b/website/docs/r/odb_cloud_vm_cluster.html.markdown
index 2a127cb7ed75..93aeac1971d5 100644
--- a/website/docs/r/odb_cloud_vm_cluster.html.markdown
+++ b/website/docs/r/odb_cloud_vm_cluster.html.markdown
@@ -58,6 +58,7 @@ resource "aws_odb_cloud_vm_cluster" "with_all_parameters" {
   cluster_name                    = "julia-13"
   timezone                        = "UTC"
   scan_listener_port_tcp          = 1521
+  system_version                  = "25.1.14.0.0.260206"
   tags = {
     "env" = "dev"
   }
@@ -95,6 +96,7 @@ The following arguments are optional:
 * `license_model` - (Optional) The Oracle license model to apply to the VM cluster. Default: LICENSE_INCLUDED. Changing this will create a new resource.
 * `memory_size_in_gbs` - (Optional) The amount of memory, in gigabytes (GBs), to allocate for the VM cluster. Changing this will create a new resource.
 * `scan_listener_port_tcp` - (Optional) The port number for TCP connections to the single client access name (SCAN) listener. Valid values: 1024–8999, except 2484, 6100, 6200, 7060, 7070, 7085, and 7879. Default: 1521. Changing this will create a new resource.
+* `system_version` - (Optional) The operating system version of the image for the VM cluster. To get the list of valid values, use the `ListSystemVersions` operation, specifying the GI version and Exadata infrastructure shape. If not specified, the default system version is used. Changing this will create a new resource.
 * `timezone` - (Optional) The configured time zone of the VM cluster. Changing this will create a new resource.
 * `region` - (Optional) Region where this resource will be [managed](https://docs.aws.amazon.com/general/latest/gr/rande.html#regional-endpoints). Defaults to the Region set in the [provider configuration](https://registry.terraform.io/providers/hashicorp/aws/latest/docs#aws-configuration-reference).
 * `tags` - (Optional) A map of tags to assign to the exadata infrastructure. If configured with a provider [`default_tags` configuration block](https://registry.terraform.io/providers/hashicorp/aws/latest/docs#default_tags-configuration-block) present, tags with matching keys will overwrite those defined at the provider-level.
@@ -123,7 +125,6 @@ This data source exports the following attributes in addition to the arguments a
 * `status` - The current lifecycle status of the VM cluster.
 * `status_reason` - Additional information regarding the current status of the VM cluster.
 * `storage_size_in_gbs` - The local node storage allocated to the VM cluster, in gigabytes (GB).
-* `system_version` - The operating system version of the image chosen for the VM cluster.
 * `vip_ids` - The virtual IP (VIP) addresses assigned to the VM cluster. CRS assigns one VIP per node for failover support.
 * `created_at` - The timestamp when the VM cluster was created.
 * `gi_version_computed` - A complete software version of Oracle Grid Infrastructure (GI).