Sęk

Sęk is a Polish surname. It is a cognate of the Czech and Ukrainian surname Suk. Notable people with the surname include:
 * Dariusz Sęk (born 1986), Polish boxer
 * Paweł Sęk (born 1977), Polish composer and audio engineer
 * Szymon Szynkowski vel Sęk (born 1982), Polish politician