Last name סינק (Sinek 
, Sink 
, סינק 
) , throughout the world, is quite a common surname. The family name סינק is habitual in Slovenia, where it is quite a common surname, Estonia, and the United States, where it is quite a rare surname. Not in comparison with a country's population, this name is the most popular in the United States, Myanmar, and Indonesia. Very seldom, סינק is the forename as well as the last name.