Matej Žagar (born 3 April 1983 in Ljubljana, Slovenia) is a Slovenian motorcycle speedway rider who was won Individual Speedway European Champion titles (Senior in 2004 and 2008; Under 19 in 2002). He was permanent speedway rider in 2006 and 2007 Speedway Grand Prix seasons. He was touted as a potential GP wildcard for the 2012 SGP season following impressive and consistent performances in the Polish Extraliga with Gorzow, but turned down the opportunity to replace Darcy Ward due to the 1GP rider in the Extraliga and his contract with Gorzow, where 2010 world champion Tomasz Gollob was signed up.