Last name Januari (January 
, Januari , Genever 
) , in all the world, is a common surname. The cognomen Januari is habitual in Namibia, where it is quite a common surname, Tanzania, and Brunei (explore the name in all countries). Not in comparison with a country's population, the name is most common in Tanzania, Indonesia, and South Africa. Also, Januari is the forename as well as the last name.