diff --git a/docs/release-notes/version-2.8.md b/docs/release-notes/version-2.8.md
index 9574894a3..ad86ca9df 100644
--- a/docs/release-notes/version-2.8.md
+++ b/docs/release-notes/version-2.8.md
@@ -4,6 +4,10 @@ v2.8.5 (FUTURE)
 
 **Note:** The minimum required version of PostgreSQL is now 9.6.
 
+### Enhancements
+
+* [#4665](https://github.com/netbox-community/netbox/issues/4665) - Add NEMA L14 and L21 power port/outlet types
+
 ### Bug Fixes
 
 * [#3304](https://github.com/netbox-community/netbox/issues/3304) - Fix caching invalidation issue related to device/virtual machine primary IP addresses
diff --git a/netbox/dcim/choices.py b/netbox/dcim/choices.py
index 8433bb152..479563093 100644
--- a/netbox/dcim/choices.py
+++ b/netbox/dcim/choices.py
@@ -276,6 +276,10 @@ class PowerPortTypeChoices(ChoiceSet):
     TYPE_NEMA_L620P = 'nema-l6-20p'
     TYPE_NEMA_L630P = 'nema-l6-30p'
     TYPE_NEMA_L650P = 'nema-l6-50p'
+    TYPE_NEMA_L1420P = 'nema-l14-20p'
+    TYPE_NEMA_L1430P = 'nema-l14-30p'
+    TYPE_NEMA_L2120P = 'nema-l21-20p'
+    TYPE_NEMA_L2130P = 'nema-l21-30p'
     # California style
     TYPE_CS6361C = 'cs6361c'
     TYPE_CS6365C = 'cs6365c'
@@ -337,6 +341,10 @@ class PowerPortTypeChoices(ChoiceSet):
             (TYPE_NEMA_L620P, 'NEMA L6-20P'),
             (TYPE_NEMA_L630P, 'NEMA L6-30P'),
             (TYPE_NEMA_L650P, 'NEMA L6-50P'),
+            (TYPE_NEMA_L1420P, 'NEMA L14-20P'),
+            (TYPE_NEMA_L1430P, 'NEMA L14-30P'),
+            (TYPE_NEMA_L2120P, 'NEMA L21-20P'),
+            (TYPE_NEMA_L2130P, 'NEMA L21-30P'),
         )),
         ('California Style', (
             (TYPE_CS6361C, 'CS6361C'),
@@ -405,6 +413,10 @@ class PowerOutletTypeChoices(ChoiceSet):
     TYPE_NEMA_L620R = 'nema-l6-20r'
     TYPE_NEMA_L630R = 'nema-l6-30r'
     TYPE_NEMA_L650R = 'nema-l6-50r'
+    TYPE_NEMA_L1420R = 'nema-l14-20r'
+    TYPE_NEMA_L1430R = 'nema-l14-30r'
+    TYPE_NEMA_L2120R = 'nema-l21-20r'
+    TYPE_NEMA_L2130R = 'nema-l21-30r'
     # California style
     TYPE_CS6360C = 'CS6360C'
     TYPE_CS6364C = 'CS6364C'
@@ -467,6 +479,10 @@ class PowerOutletTypeChoices(ChoiceSet):
             (TYPE_NEMA_L620R, 'NEMA L6-20R'),
             (TYPE_NEMA_L630R, 'NEMA L6-30R'),
             (TYPE_NEMA_L650R, 'NEMA L6-50R'),
+            (TYPE_NEMA_L1420R, 'NEMA L14-20R'),
+            (TYPE_NEMA_L1430R, 'NEMA L14-30R'),
+            (TYPE_NEMA_L2120R, 'NEMA L21-20R'),
+            (TYPE_NEMA_L2130R, 'NEMA L21-30R'),
         )),
         ('California Style', (
             (TYPE_CS6360C, 'CS6360C'),