diff --git a/odoo/addons/base/data/res.country.state.csv b/odoo/addons/base/data/res.country.state.csv
index 32d84c78980..a44148b582a 100644
--- a/odoo/addons/base/data/res.country.state.csv
+++ b/odoo/addons/base/data/res.country.state.csv
@@ -678,3 +678,33 @@ state_co_30,co,"Guainía","GUA"
 state_co_31,co,"Guaviare","GUV"
 state_co_32,co,"Vaupés","VAU"
 state_co_33,co,"Vichada","VID"
+state_mn_01,mn,"Архангай","01"
+state_mn_02,mn,"Баян-Өлгий","02"
+state_mn_03,mn,"Баянхонгор","03"
+state_mn_04,mn,"Булган","04"
+state_mn_05,mn,"Говь-Алтай","05"
+state_mn_06,mn,"Дорноговь","06"
+state_mn_07,mn,"Дорнод","07"
+state_mn_08,mn,"Дундговь","08"
+state_mn_09,mn,"Завхан","09"
+state_mn_10,mn,"Өвөрхангай","10"
+state_mn_11,mn,"Өмнөговь","11"
+state_mn_12,mn,"Сүхбаатар","12"
+state_mn_13,mn,"Сэлэнгэ","13"
+state_mn_14,mn,"Төв","14"
+state_mn_15,mn,"Увс","15"
+state_mn_16,mn,"Ховд","16"
+state_mn_17,mn,"Хөвсгөл","17"
+state_mn_18,mn,"Хэнтий","18"
+state_mn_19,mn,"Дархан-Уул","19"
+state_mn_20,mn,"Орхон","20"
+state_mn_23,mn,"УБ - Хан Уул","23"
+state_mn_24,mn,"УБ - Баянзүрх","24"
+state_mn_25,mn,"УБ - Сүхбаатар","25"
+state_mn_26,mn,"УБ - Баянгол","26"
+state_mn_27,mn,"УБ - Багануур","27"
+state_mn_28,mn,"УБ - Багахангай","28"
+state_mn_29,mn,"УБ - Налайх","29"
+state_mn_32,mn,"Говьсүмбэр","32"
+state_mn_34,mn,"УБ - Сонгино Хайрхан","34"
+state_mn_35,mn,"УБ - Чингэлтэй","35"