Across the world, Ionathan (Ionathan 
, Йонатхан 
, ג'ונתן 
) is a rare masculine first name. The given name Ionathan is habitual in Greece, where it is quite a rare masculine name, Panama, where it is a rare male name, and Romania. Measured by absolute frequency, the name is most common in Greece, Romania, and Brazil. Very seldom, Ionathan is the last name as well as the forename.