Ronald Mulder (born 27 February 1986) is a Dutch speed skater. He won bronze in the men's 500 metres event at the 2014 Winter Olympics in Sochi, Russia, and finished sixth in the men's 500 metres event at the 2012 World Single Distance Championships. His twin brother, Michel Mulder, is also a speed skater. Both competed in The World Games 2017 in Wroclaw, Poland representing the Netherlands in 500 metres sprint and 200 metres time trial. He competed in the 2018 Winter Olympics in the men's 500 metres event, finishing in 7th place.