Mariusz Rumak (born 3 June 1977) is a Polish professional football manager and former player who was most recently in charge of Ekstraklasa club Lech Poznań.

[1] On 27 February 2012, he signed with Ekstraklasa club Lech Poznań as senior team manager.

[2] On 17 December 2023, after spending the last year-and-a-half in Lech Poznań's academy as a vice-director of coach development, he was again appointed as manager of Lech, until the end of the 2023–24 season.

[3] On 10 May 2024, at a press conference before Lech's 1–2 home loss to Legia Warsaw, which ended Lech's title challenge, Rumak announced he would not continue in his role in the following campaign.

This biographical article relating to Polish football is a stub.