Surname ซิดนี่ (Sidny 
, ซิดนี่) , around the world, is a rare cognomen. The family name ซิดนี่ is habitual in Nicaragua, where it is a rare surname, Honduras, where it is a very rare surname, and Indonesia. Not in comparison with a country's population, it most frequently occurs in Indonesia, Mexico, and Nicaragua. More frequently, ซิดนี่ is the forename as well as the last name.