Cognomen Ярва (Jarva 
, Ярва 
) , all around the world, is a rare family name. The cognomen Ярва is habitual in Northern Europe, particularly Estonia, where it is quite a common surname, Finland, where it is quite a rare surname, and Norway, where it is a rare surname. In absolute terms, this name is the most popular in Finland, Estonia, and the United States. Very seldom, Ярва is the forename as well as the last name.