diff --git a/src/lib/isMobilePhone.js b/src/lib/isMobilePhone.js
index b00391ea6..52b1e4b01 100644
--- a/src/lib/isMobilePhone.js
+++ b/src/lib/isMobilePhone.js
@@ -119,6 +119,7 @@ const phones = {
   'ka-GE': /^(\+?995)?(79\d{7}|5\d{8})$/,
   'kk-KZ': /^(\+?7|8)?7\d{9}$/,
   'kl-GL': /^(\+?299)?\s?\d{2}\s?\d{2}\s?\d{2}$/,
+  'km-KH': /^(\+855|0)[1-9]\d{7,9}$/,
   'ko-KR': /^((\+?82)[ \-]?)?0?1([0|1|6|7|8|9]{1})[ \-]?\d{3,4}[ \-]?\d{4}$/,
   'ky-KG': /^(\+996\s?)?(22[0-9]|50[0-9]|55[0-9]|70[0-9]|75[0-9]|77[0-9]|880|990|995|996|997|998)\s?\d{3}\s?\d{3}$/,
   'lt-LT': /^(\+370|8)\d{8}$/,
diff --git a/test/validators.test.js b/test/validators.test.js
index 9bd00d6ec..7e12c5f14 100644
--- a/test/validators.test.js
+++ b/test/validators.test.js
@@ -10412,6 +10412,23 @@ describe('Validators', () => {
           '12 34 56 78',
         ],
       },
+      {
+        locale: 'km-KH',
+        valid: [
+          '0231234567',
+          '+855231234567',
+          '012345678',
+          '+85512345678',
+          '+855123456789',
+        ],
+        invalid: [
+          '12345678',
+          '+855012345678',
+          '01234',
+          '0123456789012',
+          '',
+        ],
+      },
       {
         locale: 'kk-KZ',
         valid: [