Tags: Swimmer.
Frederike Johanna Maria Femke Heemskerk (Dutch pronunciation: [fɛmkə heɪmskɛrk]; born September 21 1987 in Roelofarendsveen) is a Dutch swimmer who mainly specializes in freestyle but also has a strong backstroke and medley.As part of the Dutch team she holds the world record 4×100 m freestyle relay on both short course and long course. In short course she is also part of the Dutch team who holds the 4×200 m freestyle relay world record.