Simko, Šimko or Simkó is a surname. Notable people with the surname include:
Simko Ahmed (born 1972), Kurdish artist Simko Shikak (1887–1930) Kurdish leader David Simko (born 1954), American racing driver Imre Simkó (1939–2021), Hungarian sport shooter Ivan Šimko (born 1955), Slovak politician Joe Simko, American illustrator Julián Šimko (1886–1956), Slovak politician Kate Simko, American electronic music producer Marek Šimko (born 1988), Slovak ice hockey player Otto Šimko (1924–2026), Slovak jurist and Holocaust survivor Patrik Šimko (born 1991), Slovak footballer Pavel Šimko (born 1982), Slovak triathlete