Marian Fontowicz (13 July 1907 – 20 November 1988) was a Polish footballer who played as goalkeeper.
His first league appearance came on 3 April 1927 in a home game against Czarni Lwów.
He has spent his entire career at Warta Poznań, playing 578 matches for the team.
Fontowicz received his first call-up to the Poland national team for the match with Sweden, played on 1 July 1928 in Katowice (2–1); he was then only a backup for Stefan Kisieliński.
[2] Fontowicz conceded once from a penalty kick in a match against Germany on 9 September 1934, lost by Poland 2–5.