Last name Йоала (Joala 
, Йоала 
) , all around the world, is a rare cognomen. The surname Йоала is characteristic of Estonia, where it is quite a common surname, Lesotho, where it is quite a rare surname, and Finland, where it is a rare surname. Measured by absolute frequency, it is the most numerous in Lesotho, Estonia, and South Africa. Very seldom, Йоала is the forename as well as the last name.