diff --git a/changelogs/fragments/2063-add-multicast-support.yml b/changelogs/fragments/2063-add-multicast-support.yml
new file mode 100644
index 00000000000..ed6ec1e9eb3
--- /dev/null
+++ b/changelogs/fragments/2063-add-multicast-support.yml
@@ -0,0 +1,2 @@
+minor_changes:
+  - ec2_transit_gateway - Support for enable multicast on Transit Gateway (https://github.com/ansible-collections/community.aws/pull/2063).
diff --git a/plugins/module_utils/transitgateway.py b/plugins/module_utils/transitgateway.py
index 5f0e934d1f2..8a82a839ff1 100644
--- a/plugins/module_utils/transitgateway.py
+++ b/plugins/module_utils/transitgateway.py
@@ -192,6 +192,9 @@ def _set_option(self, name, value):
     def set_dns_support(self, value):
         return self._set_option("DnsSupport", value)
 
+    def set_multicast_support(self, value):
+        return self._set_option("MulticastSupport", value)
+
     def set_ipv6_support(self, value):
         return self._set_option("Ipv6Support", value)
 
diff --git a/plugins/modules/ec2_transit_gateway.py b/plugins/modules/ec2_transit_gateway.py
index 19876984dba..c3a1079e5c9 100644
--- a/plugins/modules/ec2_transit_gateway.py
+++ b/plugins/modules/ec2_transit_gateway.py
@@ -42,6 +42,11 @@
       - Whether to enable AWS DNS support.
     default: true
     type: bool
+  multicast_support:
+    description:
+      - Whether to enable AWS Multicast support. Valid only at the time of creation of the Transit Gateway.
+    type: bool
+    version_added: 8.1.0
   state:
     description:
       - C(present) to ensure resource is created.
@@ -91,6 +96,7 @@
     asn: 64514
     auto_associate: false
     auto_propagate: false
+    multicast_support: true
     dns_support: true
     description: "nonprod transit gateway"
     purge_tags: false
@@ -181,6 +187,12 @@
           returned: always
           type: str
           sample: enable
+        multicast_support:
+          description: Indicates whether Multicast support is enabled.
+          returned: always
+          type: str
+          sample: enable
+          version_added: 7.3.0
     owner_id:
       description: The account that owns the transit gateway.
       returned: always
@@ -362,6 +374,7 @@ def create_tgw(self, description):
         options["DefaultRouteTablePropagation"] = self.enable_option_flag(self._module.params.get("auto_propagate"))
         options["VpnEcmpSupport"] = self.enable_option_flag(self._module.params.get("vpn_ecmp_support"))
         options["DnsSupport"] = self.enable_option_flag(self._module.params.get("dns_support"))
+        options["MulticastSupport"] = self.enable_option_flag(self._module.params.get("multicast_support"))
 
         try:
             response = self._connection.create_transit_gateway(Description=description, Options=options)
@@ -482,6 +495,7 @@ def setup_module_object():
         auto_attach=dict(type="bool", default=False),
         auto_propagate=dict(type="bool", default=True),
         description=dict(type="str"),
+        multicast_support=dict(type="bool"),
         dns_support=dict(type="bool", default=True),
         purge_tags=dict(type="bool", default=True),
         state=dict(default="present", choices=["present", "absent"]),
diff --git a/plugins/modules/ec2_transit_gateway_info.py b/plugins/modules/ec2_transit_gateway_info.py
index b25346b84b8..014c875b6a0 100644
--- a/plugins/modules/ec2_transit_gateway_info.py
+++ b/plugins/modules/ec2_transit_gateway_info.py
@@ -119,6 +119,13 @@
                     returned: always
                     type: str
                     sample: "enable"
+                 multicast_support:
+                    description:
+                      - Indicates whether Multicast support is enabled.
+                    returned: always
+                    type: str
+                    sample: "enable"
+                    version_added: 7.3.0
                  propagation_default_route_table_id:
                     description:
                       - The ID of the default propagation route table.
diff --git a/tests/integration/targets/ec2_transit_gateway/tasks/main.yml b/tests/integration/targets/ec2_transit_gateway/tasks/main.yml
index c7353cfc0a6..241c9c2c324 100644
--- a/tests/integration/targets/ec2_transit_gateway/tasks/main.yml
+++ b/tests/integration/targets/ec2_transit_gateway/tasks/main.yml
@@ -22,7 +22,7 @@
       assert:
         that:
           - create_result.changed == True
-
+          
     - name: test update transit gateway with tags by description
       ec2_transit_gateway:
         description: "{{ tgw_description }}"
@@ -75,6 +75,32 @@
       assert:
         that:
           - result.changed == False
+          
+    - name: generate unique value for testing
+      set_fact:
+       tgw_description_multicast: "{{ resource_prefix }}-tgw-multicast"
+       
+    - name: test create transit gateway with multicast enabled
+      ec2_transit_gateway:
+        description: "{{ tgw_description_multicast }}"
+        multicast_support: true
+      register: create_result
+      
+    - name: assert changed is True
+      assert:
+        that:
+          - create_result.changed == True
+    
+    - name: test success with filter
+      ec2_transit_gateway_info:
+        filters:
+          options.multicast-support: enable
+      register: result
+   
+    - name: assert success with multicast-support filter
+      assert:
+        that:
+          - 'result.transit_gateways != []'
 
   # ==== Combine ec2_transit_gateway_info ======================
     - name: test success with no parameters
@@ -129,10 +155,14 @@
         that:
           - 'result.changed == false'
           - 'result.transit_gateways != []'
+         
   always:
     ###### TEARDOWN STARTS HERE ######
     - name: delete transit gateway 
       ec2_transit_gateway:
-        description: "{{ tgw_description }}"
+        description: "{{ item }}"
         state: absent
       ignore_errors: yes
+      loop:
+       - "{{ tgw_description }}"
+       - "{{ tgw_description_multicast }}"