Surname Lohu (Lohu 
) , around the world, is a rare cognomen. The cognomen Lohu is habitual in Estonia, where it is quite a rare surname, Finland, where it is a rare surname, and France, where it is a very rare surname. Measured by absolute frequency, this name is the most popular in Estonia, India, and France. Much less frequently, Lohu is the forename as well as the last name.