>
Throughout the world, Kalervo (Kalervo , Калерво ) is a rare masculine forename. The forename Kalervo is habitual in Northern Europe, particularly Finland, where it is quite a rare boy's name, and Sweden, where it is a rare boy's name. Much less frequently, Kalervo is the last name as well as the forename.
Kalervo is also a name for the fictitious and mythical characters: Kalervo , the operatic character in the opera Kullervo by Aulis Sallinen.