Maureen Koster (pronounced [mʌuˈreːŋ ˈkɔstər]; born 3 July 1992) is a Dutch middle-distance runner who competes in track and cross country running events.

She won the bronze medal in the 3000 metres at the 2015 European Athletics Indoor Championships in Prague,[1] which later became a silver medal after Yelena Korobkina was disqualified for doping.

Se represented her country at the 2010 World Junior Championships in Athletics and the 2013 World Championships in Athletics.

[2] She ran in the under-23 section at the 2013 and 2014 European Cross Country Championships, winning a team bronze on the first attempt and coming fifth individually in the latter edition.

[3][4] She also ran in 1500 m at the 2014 European Athletics Championships, but failed to make the final.