Cognomen อุ๋ม (Um 
, อุ๋ม) , globally, is a common last name. The last name อุ๋ม is characteristic of Cameroon, where it is quite a common surname, United Arab Emirates, where it is quite a rare surname, and Bahrain. In absolute terms, this name is the most popular in India, Cameroon, and Indonesia. More frequently, อุ๋ม is the forename as well as the last name.