Cognomen Ярно (Jarno 
, Iarno 
, Ярно 
) , all around the world, is quite a rare surname. The family name Ярно is characteristic of France, where it is quite a rare surname, Cyprus, and Finland, where it is a rare surname. Measured by absolute frequency, the name is most common in France, Indonesia, and Poland. More frequently, Ярно is the forename as well as the last name.