Marcinko is a surname. In Slovak, Marcinková is the corresponding surname for women.
It is most common in the US where approximately 1 in 270,000 people have the surname. Notable people with the surname include:
Gabriela Marcinková (born 1988), Slovak actress Miroslav Marcinko (born 1964), Slovak ice hockey player Nadia Marcinko (born 1986), U.S. Gulfstream commercial pilot, also known as Nada Marcinkova Petra Marčinko (born 2005), Croatian tennis player Richard Marcinko (1940–2021), United States Navy officer Tomáš Marcinko (born 1988), Slovak ice hockey player Vladimíra Marcinková (born 1991), Slovak politician