diff --git a/src/sonic-yang-models/tests/files/sample_config_db.json b/src/sonic-yang-models/tests/files/sample_config_db.json
index 42c40ab36b0a..2d2c2e63d4ec 100644
--- a/src/sonic-yang-models/tests/files/sample_config_db.json
+++ b/src/sonic-yang-models/tests/files/sample_config_db.json
@@ -369,7 +369,8 @@
                 "yang_config_validation": "disable",
                 "rack_mgmt_map": "dummy_value",
                 "timezone": "Europe/Kiev",
-                "bgp_router_id": "8.8.8.8"
+                "bgp_router_id": "8.8.8.8",
+                "chassis_hostname": "str-sonic-chassis-1"
             }
         },
         "VLAN": {
diff --git a/src/sonic-yang-models/tests/yang_model_tests/tests/device_metadata.json b/src/sonic-yang-models/tests/yang_model_tests/tests/device_metadata.json
index 226107109944..5f81f02a3c7e 100644
--- a/src/sonic-yang-models/tests/yang_model_tests/tests/device_metadata.json
+++ b/src/sonic-yang-models/tests/yang_model_tests/tests/device_metadata.json
@@ -169,5 +169,8 @@
     "DEVICE_METADATA_INVALID_BGP_ROUTER_ID": {
         "desc": "Verifying invalid bgp_router_id configuration.",
         "eStrKey": "Pattern"
+    },
+    "DEVICE_METADATA_VALID_CHASSIS_HOSTNAME": {
+        "desc": "Verifying valid chassis hostname configuration."
     }
 }
diff --git a/src/sonic-yang-models/tests/yang_model_tests/tests_config/device_metadata.json b/src/sonic-yang-models/tests/yang_model_tests/tests_config/device_metadata.json
index cda0eef26e23..75d08694a5a5 100644
--- a/src/sonic-yang-models/tests/yang_model_tests/tests_config/device_metadata.json
+++ b/src/sonic-yang-models/tests/yang_model_tests/tests_config/device_metadata.json
@@ -462,5 +462,14 @@
                 }
             }
         }
+    },
+    "DEVICE_METADATA_VALID_CHASSIS_HOSTNAME": {
+        "sonic-device_metadata:sonic-device_metadata": {
+            "sonic-device_metadata:DEVICE_METADATA": {
+                "sonic-device_metadata:localhost": {
+                    "chassis_hostname": "sonic-chassis-1"
+                }
+            }
+        }
     }
 }
diff --git a/src/sonic-yang-models/yang-models/sonic-device_metadata.yang b/src/sonic-yang-models/yang-models/sonic-device_metadata.yang
index 02f81283cf7d..e201b4bfde81 100644
--- a/src/sonic-yang-models/yang-models/sonic-device_metadata.yang
+++ b/src/sonic-yang-models/yang-models/sonic-device_metadata.yang
@@ -254,6 +254,11 @@ module sonic-device_metadata {
                     type inet:ipv4-address;
                     description "BGP Router identifier";
                 }
+
+                leaf chassis_hostname {
+                    description "hostname of the chassis to which this linecard or supervisor belongs to";
+                    type stypes:hostname;
+                }
             }
             /* end of container localhost */
         }