diff --git a/samtranslator/model/api/api_generator.py b/samtranslator/model/api/api_generator.py
index b9fe23e4d..1dd6f436e 100644
--- a/samtranslator/model/api/api_generator.py
+++ b/samtranslator/model/api/api_generator.py
@@ -535,13 +535,13 @@ def _construct_api_domain(  # noqa: PLR0912, PLR0915
 
         self._set_optional_domain_properties(domain)
 
-        basepaths: Optional[List[str]]
+        basepaths: Optional[List[Any]]
         basepath_value = self.domain.get("BasePath")
         # Create BasepathMappings
-        if self.domain.get("BasePath") and isinstance(basepath_value, str):
+        if isinstance(basepath_value, str) or is_intrinsic(basepath_value):
             basepaths = [basepath_value]
-        elif self.domain.get("BasePath") and isinstance(basepath_value, list):
-            basepaths = cast(Optional[List[Any]], basepath_value)
+        elif isinstance(basepath_value, list):
+            basepaths = basepath_value
         else:
             basepaths = None
 
@@ -554,13 +554,19 @@ def _construct_api_domain(  # noqa: PLR0912, PLR0915
             basepath_mapping = self._create_basepath_mapping(api_domain_name, rest_api, None, None)
             basepath_resource_list.extend([basepath_mapping])
         else:
-            sam_expect(basepaths, self.logical_id, "Domain.BasePath").to_be_a_list_of(ExpectedType.STRING)
+            if not is_intrinsic(basepaths[0]):
+                sam_expect(basepaths, self.logical_id, "Domain.BasePath").to_be_a_list_of(ExpectedType.STRING)
             for basepath in basepaths:
-                # Remove possible leading and trailing '/' because a base path may only
-                # contain letters, numbers, and one of "$-_.+!*'()"
-                path = "".join(e for e in basepath if e.isalnum())
-                mapping_basepath = path if normalize_basepath else basepath
-                logical_id = "{}{}{}".format(self.logical_id, path, "BasePathMapping")
+                if is_intrinsic(basepath):
+                    mapping_basepath = basepath
+                    logical_id = self.logical_id + "BasePathMapping"
+                else:
+                    # Remove possible leading and trailing '/' because a base path may only
+                    # contain letters, numbers, and one of "$-_.+!*'()"
+                    path = "".join(e for e in basepath if e.isalnum())
+                    mapping_basepath = path if normalize_basepath else basepath
+                    logical_id = "{}{}{}".format(self.logical_id, path, "BasePathMapping")
+
                 basepath_mapping = self._create_basepath_mapping(
                     api_domain_name, rest_api, logical_id, mapping_basepath
                 )
@@ -810,7 +816,7 @@ def _create_basepath_mapping(
         api_domain_name: PassThrough,
         rest_api: ApiGatewayRestApi,
         logical_id: Optional[str],
-        basepath: Optional[str],
+        basepath: Optional[Any],
     ) -> ApiGatewayBasePathMapping:
 
         basepath_mapping: ApiGatewayBasePathMapping
diff --git a/tests/translator/input/api_with_basic_custom_domain_intrinsics.yaml b/tests/translator/input/api_with_basic_custom_domain_intrinsics.yaml
index f2350ea83..bcf820139 100644
--- a/tests/translator/input/api_with_basic_custom_domain_intrinsics.yaml
+++ b/tests/translator/input/api_with_basic_custom_domain_intrinsics.yaml
@@ -58,7 +58,7 @@ Resources:
         DomainName: !Sub 'example-${AWS::Region}.com'
         CertificateArn: !Ref MyDomainCert
         EndpointConfiguration: !Ref EndpointConf
-        BasePath: [/get, /fetch]
+        BasePath: !Sub '${AWS::Region}-api'
         MutualTlsAuthentication:
           TruststoreUri: !Ref MyMTLSUri
           TruststoreVersion: !Ref MyMTLSVersion
diff --git a/tests/translator/output/api_with_basic_custom_domain_intrinsics.json b/tests/translator/output/api_with_basic_custom_domain_intrinsics.json
index 69df9e3fc..890a76422 100644
--- a/tests/translator/output/api_with_basic_custom_domain_intrinsics.json
+++ b/tests/translator/output/api_with_basic_custom_domain_intrinsics.json
@@ -99,33 +99,12 @@
       },
       "Type": "AWS::ApiGateway::RestApi"
     },
-    "MyApiDeployment19c8cf5c63": {
+    "MyApiBasePathMapping": {
       "Condition": "C1",
       "Properties": {
-        "Description": "RestApi deployment id: 19c8cf5c63090f12c5a96f6f57162495bed446c7",
-        "RestApiId": {
-          "Ref": "MyApi"
-        }
-      },
-      "Type": "AWS::ApiGateway::Deployment"
-    },
-    "MyApiProdStage": {
-      "Condition": "C1",
-      "Properties": {
-        "DeploymentId": {
-          "Ref": "MyApiDeployment19c8cf5c63"
+        "BasePath": {
+          "Fn::Sub": "ap-southeast-1-api"
         },
-        "RestApiId": {
-          "Ref": "MyApi"
-        },
-        "StageName": "Prod"
-      },
-      "Type": "AWS::ApiGateway::Stage"
-    },
-    "MyApifetchBasePathMapping": {
-      "Condition": "C1",
-      "Properties": {
-        "BasePath": "fetch",
         "DomainName": {
           "Ref": "ApiGatewayDomainNamec0ed6fae34"
         },
@@ -138,21 +117,28 @@
       },
       "Type": "AWS::ApiGateway::BasePathMapping"
     },
-    "MyApigetBasePathMapping": {
+    "MyApiDeployment651fe13005": {
       "Condition": "C1",
       "Properties": {
-        "BasePath": "get",
-        "DomainName": {
-          "Ref": "ApiGatewayDomainNamec0ed6fae34"
+        "Description": "RestApi deployment id: 651fe13005fac4c7c7f2fe93b77c7ef2c6c3e746",
+        "RestApiId": {
+          "Ref": "MyApi"
+        }
+      },
+      "Type": "AWS::ApiGateway::Deployment"
+    },
+    "MyApiProdStage": {
+      "Condition": "C1",
+      "Properties": {
+        "DeploymentId": {
+          "Ref": "MyApiDeployment651fe13005"
         },
         "RestApiId": {
           "Ref": "MyApi"
         },
-        "Stage": {
-          "Ref": "MyApiProdStage"
-        }
+        "StageName": "Prod"
       },
-      "Type": "AWS::ApiGateway::BasePathMapping"
+      "Type": "AWS::ApiGateway::Stage"
     },
     "MyFunction": {
       "Condition": "C1",
diff --git a/tests/translator/output/aws-cn/api_with_basic_custom_domain_intrinsics.json b/tests/translator/output/aws-cn/api_with_basic_custom_domain_intrinsics.json
index 230575039..354aa9d9d 100644
--- a/tests/translator/output/aws-cn/api_with_basic_custom_domain_intrinsics.json
+++ b/tests/translator/output/aws-cn/api_with_basic_custom_domain_intrinsics.json
@@ -107,33 +107,12 @@
       },
       "Type": "AWS::ApiGateway::RestApi"
     },
-    "MyApiDeployment4f2c19d290": {
+    "MyApiBasePathMapping": {
       "Condition": "C1",
       "Properties": {
-        "Description": "RestApi deployment id: 4f2c19d290875d88d8e30124f0953f1784e1b54d",
-        "RestApiId": {
-          "Ref": "MyApi"
-        }
-      },
-      "Type": "AWS::ApiGateway::Deployment"
-    },
-    "MyApiProdStage": {
-      "Condition": "C1",
-      "Properties": {
-        "DeploymentId": {
-          "Ref": "MyApiDeployment4f2c19d290"
+        "BasePath": {
+          "Fn::Sub": "cn-north-1-api"
         },
-        "RestApiId": {
-          "Ref": "MyApi"
-        },
-        "StageName": "Prod"
-      },
-      "Type": "AWS::ApiGateway::Stage"
-    },
-    "MyApifetchBasePathMapping": {
-      "Condition": "C1",
-      "Properties": {
-        "BasePath": "fetch",
         "DomainName": {
           "Ref": "ApiGatewayDomainNamec0cd2d9dfc"
         },
@@ -146,21 +125,28 @@
       },
       "Type": "AWS::ApiGateway::BasePathMapping"
     },
-    "MyApigetBasePathMapping": {
+    "MyApiDeploymente1e3e9b849": {
       "Condition": "C1",
       "Properties": {
-        "BasePath": "get",
-        "DomainName": {
-          "Ref": "ApiGatewayDomainNamec0cd2d9dfc"
+        "Description": "RestApi deployment id: e1e3e9b849803f87115b2cb8fcdf5d144342aaa4",
+        "RestApiId": {
+          "Ref": "MyApi"
+        }
+      },
+      "Type": "AWS::ApiGateway::Deployment"
+    },
+    "MyApiProdStage": {
+      "Condition": "C1",
+      "Properties": {
+        "DeploymentId": {
+          "Ref": "MyApiDeploymente1e3e9b849"
         },
         "RestApiId": {
           "Ref": "MyApi"
         },
-        "Stage": {
-          "Ref": "MyApiProdStage"
-        }
+        "StageName": "Prod"
       },
-      "Type": "AWS::ApiGateway::BasePathMapping"
+      "Type": "AWS::ApiGateway::Stage"
     },
     "MyFunction": {
       "Condition": "C1",
diff --git a/tests/translator/output/aws-us-gov/api_with_basic_custom_domain_intrinsics.json b/tests/translator/output/aws-us-gov/api_with_basic_custom_domain_intrinsics.json
index 142c16774..3538689e3 100644
--- a/tests/translator/output/aws-us-gov/api_with_basic_custom_domain_intrinsics.json
+++ b/tests/translator/output/aws-us-gov/api_with_basic_custom_domain_intrinsics.json
@@ -107,33 +107,12 @@
       },
       "Type": "AWS::ApiGateway::RestApi"
     },
-    "MyApiDeployment32e59613e2": {
+    "MyApiBasePathMapping": {
       "Condition": "C1",
       "Properties": {
-        "Description": "RestApi deployment id: 32e59613e2e02a1f1d264849167ea359f10342f0",
-        "RestApiId": {
-          "Ref": "MyApi"
-        }
-      },
-      "Type": "AWS::ApiGateway::Deployment"
-    },
-    "MyApiProdStage": {
-      "Condition": "C1",
-      "Properties": {
-        "DeploymentId": {
-          "Ref": "MyApiDeployment32e59613e2"
+        "BasePath": {
+          "Fn::Sub": "us-gov-west-1-api"
         },
-        "RestApiId": {
-          "Ref": "MyApi"
-        },
-        "StageName": "Prod"
-      },
-      "Type": "AWS::ApiGateway::Stage"
-    },
-    "MyApifetchBasePathMapping": {
-      "Condition": "C1",
-      "Properties": {
-        "BasePath": "fetch",
         "DomainName": {
           "Ref": "ApiGatewayDomainName9c93aac102"
         },
@@ -146,21 +125,28 @@
       },
       "Type": "AWS::ApiGateway::BasePathMapping"
     },
-    "MyApigetBasePathMapping": {
+    "MyApiDeployment9d140ab9b8": {
       "Condition": "C1",
       "Properties": {
-        "BasePath": "get",
-        "DomainName": {
-          "Ref": "ApiGatewayDomainName9c93aac102"
+        "Description": "RestApi deployment id: 9d140ab9b8b8ee141d5cd2d4a90a374c37a10db7",
+        "RestApiId": {
+          "Ref": "MyApi"
+        }
+      },
+      "Type": "AWS::ApiGateway::Deployment"
+    },
+    "MyApiProdStage": {
+      "Condition": "C1",
+      "Properties": {
+        "DeploymentId": {
+          "Ref": "MyApiDeployment9d140ab9b8"
         },
         "RestApiId": {
           "Ref": "MyApi"
         },
-        "Stage": {
-          "Ref": "MyApiProdStage"
-        }
+        "StageName": "Prod"
       },
-      "Type": "AWS::ApiGateway::BasePathMapping"
+      "Type": "AWS::ApiGateway::Stage"
     },
     "MyFunction": {
       "Condition": "C1",