Maciek ("Michael" or "Mike") Gracz (pronounced Grahtz) (born 23 October 1980, in Warsaw) is a Polish professional poker player, based in Raleigh, North Carolina.

Gracz learned poker from his father and played regularly whilst studying at North Carolina State University.

[1] Gracz's first major victory was in the $5,000 no limit hold'em championship event in the 2004 Trump Classic in Atlantic City.

[2] On 19 March 2005, he won the World Poker Tour (WPT) PartyPoker.com Million IV Cruise event (the largest limit hold'em tournament in history) and the $1,500,000 first prize, defeating a final table that included Paul Darden.

[3] Three months later, he won his first World Series of Poker bracelet in the $1,000 no limit hold'em w/ rebuys event, scooping the first prize of $594,460.