Surname Улага (Ulaga 
, Улага 
) , all over the world, is a rare cognomen. The cognomen Улага is characteristic of Slovenia, where it is quite a common surname, Croatia, where it is a rare surname, and Netherlands, where it is a very rare surname. Measured by absolute frequency, this name is the most popular in Slovenia, Ethiopia, and Nigeria. Also, Улага is the forename as well as the last name.