Marek Kazimierz Cieslak (born 28 June 1950 in Milanówek, Poland) is a former Polish speedway rider and a current speedway coach.
In 2007 he was a manager of Poland national team.
Poland won Speedway World Cup and Team U-21 World Championship.
After victory in SWC, on 30 July 2007 Polish president Lech Kaczynski honoured him Knight's Cross of Order of Polonia Restituta for prominent contributions for development of Polish speedway sport and for achievement in training work.
In 2010, Cieslak was awarded the Officer's Cross of the Polonia Restituta for outstanding contribution to the development of speedway in Poland, for achievements in training and coaching.