Marek Galiński (1 August 1974 – 17 March 2014) was a Polish professional mountain biker and road racing cyclist. During his sporting career, he won nine Polish national championship titles and a silver medal in men's cross-country racing at the 2003 UCI World Cup series in Sankt Wendel, Germany. Galinski also represented his nation Poland in four editions of the Olympic Games (1996, 2000, 2004, and 2008), where he competed in men's mountain biking from the time that it officially became an Olympic sport in 1996. Galinski raced professionally for more than five seasons on the JBG2 Professional MTB Team. After his retirement from the sport in 2011, Galinski worked as an assistant coach of both Polish and Russian mountain bike national teams. Upon his return from a training camp in Cyprus on 17 March 2014, Galinski was suddenly killed in a car accident near Jędrzejów.