Jakub Mareš (born 26 January 1987) is a Czech football midfielder currently playing for MFK Ružomberok in the Slovak Republic.
He played at the 2007 FIFA U-20 World Cup, reaching the final with the Czech team.
Mareš first played in the Czech First League for FK Teplice, making his league debut in the 2004–05 season. He spent time on loan at clubs including FK Ústí nad Labem and Slovácko in his early career. He joined Sparta Prague on loan for the first half of the 2011–12 season, scoring twice in 12 matches.
Mareš transferred during the winter break of the season, becoming a Mladá Boleslav player in February 2012 for a transfer fee of around 10 million CZK. He played in the qualifying rounds of the Europa League for Mladá Boleslav in 2012.
Mareš joined Dukla Prague in August 2013 on loan until the end of the 2013–14 season. In his season with the club he scored three times in 20 matches. Following his season on loan, Mareš signed permanently for the club in June 2014, agreeing a two-year contract.