Cognomen Lunni (ลุนนี 
, Lunni 
) , all over the world, is a rare family name. The cognomen Lunni is characteristic of Thailand, where it is a very rare surname, Italy, and Nigeria, where it is an extremely rare surname. Measured by absolute frequency, the name is most common in Thailand, Italy, and India. More prevalently, Lunni is the forename as well as the last name.