Surname イバ (Iva 
, イバ 
) , all around the world, is a common cognomen. The cognomen イバ is habitual in Southern Europe, particularly North Macedonia, where it is quite a common surname, Montenegro, where it is quite a rare surname, and Serbia. Measured by absolute frequency, it is commonest in India, Indonesia, and Serbia. More prevalently, イバ is the forename as well as the last name.