Family name Sinila (Sinila 
) , in the entire world, is a very rare last name. The last name Sinila is habitual in Estonia, where it is a rare surname, Argentina, where it is a very rare surname, and the United States, where it is an extremely rare surname. In absolute terms, the name is most common in the United States, Argentina, and India. More frequently, Sinila is the forename as well as the last name.