Family name Sinhala (Sinhala 
, สิงหลกะ 
) , in the entire world, is a rare last name. The surname Sinhala is characteristic of Thailand, where it is a rare surname, Israel, where it is a very rare surname, and Brazil, where it is an extremely rare surname. Measured by absolute frequency, this name is the most popular in Thailand, India, and Brazil. More prevalently, Sinhala is the forename as well as the last name.