Cognomen Ruhala (Ruhala 
) , worldwide, is a rare last name. The surname Ruhala is characteristic of Finland, where it is quite a rare surname, Tanzania, where it is a rare surname, and Israel, where it is a very rare surname. In absolute terms, it most frequently occurs in Tanzania, the United States, and Finland. Likewise, Ruhala is the forename as well as the last name.