Cognomen רינגו (Ringo 
, רינגו 
) , all around the world, is a common surname. The cognomen רינגו is characteristic of Tanzania, where it is quite a common surname, Estonia, where it is quite a rare surname, and Hong Kong. Measured by absolute frequency, it is the most numerous in Tanzania, Indonesia, and the United States. Also, רינגו is the forename as well as the last name.