Family name イズワン (Izwan 
, イズワン) , in the world, is quite a rare cognomen. The cognomen イズワン is characteristic of South-eastern Asia, particularly Malaysia, where it is quite a common surname, Brunei, where it is quite a rare surname, and Singapore. Not in comparison with a country's population, this name is the most popular in South-eastern Asia, particularly Malaysia, Indonesia, and Singapore. Likewise, イズワン is the forename as well as the last name.