diff --git a/device-types/Cisco/C9300-24P.yaml b/device-types/Cisco/C9300-24P.yaml
index 893186ec..bc3d334a 100644
--- a/device-types/Cisco/C9300-24P.yaml
+++ b/device-types/Cisco/C9300-24P.yaml
@@ -108,6 +108,10 @@ interfaces:
     type: 1000base-t
     poe_mode: pse
     poe_type: type2-ieee802.3at
+  - name: StackPort1/1
+    type: cisco-stackwise
+  - name: StackPort1/2
+    type: cisco-stackwise
   - name: GigabitEthernet0/0
     type: 1000base-t
     mgmt_only: true
diff --git a/device-types/Cisco/C9300-24T-E.yaml b/device-types/Cisco/C9300-24T-E.yaml
index 7a21f300..890d989f 100644
--- a/device-types/Cisco/C9300-24T-E.yaml
+++ b/device-types/Cisco/C9300-24T-E.yaml
@@ -60,6 +60,10 @@ interfaces:
     type: 1000base-t
   - name: GigabitEthernet1/0/24
     type: 1000base-t
+  - name: StackPort1/1
+    type: cisco-stackwise
+  - name: StackPort1/2
+    type: cisco-stackwise
   - name: GigabitEthernet0/0
     type: 1000base-t
     mgmt_only: true
diff --git a/device-types/Cisco/C9300-24T.yaml b/device-types/Cisco/C9300-24T.yaml
index e748359e..7f69eb0c 100644
--- a/device-types/Cisco/C9300-24T.yaml
+++ b/device-types/Cisco/C9300-24T.yaml
@@ -60,6 +60,10 @@ interfaces:
     type: 1000base-t
   - name: GigabitEthernet1/0/24
     type: 1000base-t
+  - name: StackPort1/1
+    type: cisco-stackwise
+  - name: StackPort1/2
+    type: cisco-stackwise
   - name: GigabitEthernet0/0
     type: 1000base-t
     mgmt_only: true
diff --git a/device-types/Cisco/C9300-24U.yaml b/device-types/Cisco/C9300-24U.yaml
index ae7ca8e3..9c9db0e2 100644
--- a/device-types/Cisco/C9300-24U.yaml
+++ b/device-types/Cisco/C9300-24U.yaml
@@ -108,6 +108,10 @@ interfaces:
     type: 1000base-t
     poe_mode: pse
     poe_type: type3-ieee802.3bt
+  - name: StackPort1/1
+    type: cisco-stackwise
+  - name: StackPort1/2
+    type: cisco-stackwise
   - name: GigabitEthernet0/0
     type: 1000base-t
     mgmt_only: true
diff --git a/device-types/Cisco/C9300-24UX.yaml b/device-types/Cisco/C9300-24UX.yaml
index d709555e..8126baa1 100644
--- a/device-types/Cisco/C9300-24UX.yaml
+++ b/device-types/Cisco/C9300-24UX.yaml
@@ -111,6 +111,10 @@ interfaces:
     type: 10gbase-t
     poe_mode: pse
     poe_type: type3-ieee802.3bt
+  - name: StackPort1/1
+    type: cisco-stackwise
+  - name: StackPort1/2
+    type: cisco-stackwise
 module-bays:
   - name: Network Module
     position: '1'
diff --git a/device-types/Cisco/C9300-48P-E.yaml b/device-types/Cisco/C9300-48P-E.yaml
index f8edad55..e5c7dd73 100644
--- a/device-types/Cisco/C9300-48P-E.yaml
+++ b/device-types/Cisco/C9300-48P-E.yaml
@@ -204,6 +204,10 @@ interfaces:
     type: 1000base-t
     poe_mode: pse
     poe_type: type2-ieee802.3at
+  - name: StackPort1/1
+    type: cisco-stackwise
+  - name: StackPort1/2
+    type: cisco-stackwise
   - name: GigabitEthernet0/0
     type: 1000base-t
     mgmt_only: true
diff --git a/device-types/Cisco/C9300-48P.yaml b/device-types/Cisco/C9300-48P.yaml
index 8465b5a7..7d5f5ea9 100644
--- a/device-types/Cisco/C9300-48P.yaml
+++ b/device-types/Cisco/C9300-48P.yaml
@@ -204,6 +204,10 @@ interfaces:
     type: 1000base-t
     poe_mode: pse
     poe_type: type2-ieee802.3at
+  - name: StackPort1/1
+    type: cisco-stackwise
+  - name: StackPort1/2
+    type: cisco-stackwise
   - name: GigabitEthernet0/0
     type: 1000base-t
     mgmt_only: true
diff --git a/device-types/Cisco/C9300-48T.yaml b/device-types/Cisco/C9300-48T.yaml
index c00f294a..c37dcad5 100644
--- a/device-types/Cisco/C9300-48T.yaml
+++ b/device-types/Cisco/C9300-48T.yaml
@@ -110,6 +110,10 @@ interfaces:
     type: 1000base-t
   - name: GigabitEthernet1/0/48
     type: 1000base-t
+  - name: StackPort1/1
+    type: cisco-stackwise
+  - name: StackPort1/2
+    type: cisco-stackwise
   - name: GigabitEthernet0/0
     type: 1000base-t
     mgmt_only: true
diff --git a/device-types/Cisco/C9300-48U.yaml b/device-types/Cisco/C9300-48U.yaml
index 8a557975..4bb0bafc 100644
--- a/device-types/Cisco/C9300-48U.yaml
+++ b/device-types/Cisco/C9300-48U.yaml
@@ -204,6 +204,10 @@ interfaces:
     type: 1000base-t
     poe_mode: pse
     poe_type: type3-ieee802.3bt
+  - name: StackPort1/1
+    type: cisco-stackwise
+  - name: StackPort1/2
+    type: cisco-stackwise
   - name: GigabitEthernet0/0
     type: 1000base-t
     mgmt_only: true
diff --git a/device-types/Cisco/C9300-48UN.yaml b/device-types/Cisco/C9300-48UN.yaml
index eaed8c0a..1e18e788 100644
--- a/device-types/Cisco/C9300-48UN.yaml
+++ b/device-types/Cisco/C9300-48UN.yaml
@@ -108,6 +108,10 @@ interfaces:
     type: 5gbase-t
   - name: FiveGigabitEthernet1/0/48
     type: 5gbase-t
+  - name: StackPort1/1
+    type: cisco-stackwise
+  - name: StackPort1/2
+    type: cisco-stackwise
   - name: GigabitEthernet0/0
     type: 1000base-t
     mgmt_only: true
diff --git a/device-types/Cisco/C9300-48UXM.yaml b/device-types/Cisco/C9300-48UXM.yaml
index b4207501..980b23c9 100644
--- a/device-types/Cisco/C9300-48UXM.yaml
+++ b/device-types/Cisco/C9300-48UXM.yaml
@@ -207,6 +207,10 @@ interfaces:
     type: 10gbase-t
     poe_mode: pse
     poe_type: type3-ieee802.3bt
+  - name: StackPort1/1
+    type: cisco-stackwise
+  - name: StackPort1/2
+    type: cisco-stackwise
 module-bays:
   - name: Network Module
     position: '1'