Zoltán Gyimesi (born 31 March 1977) is a Hungarian chess grandmaster and national champion in 2005.

He has participated in four Chess Olympiads (1998, 2002, 2004, 2006) with a record of +11=18-4.

In 2002, at the 35th Chess Olympiad, the Hungarian team won the silver medal with Gyimesi on the fourth board.

[1] In 2004, he tied for 1st-6th with Evgeniy Najer, Artyom Timofeev, Kaido Külaots, Sergey Grigoriants and Oleg Korneev in the Cappelle-la-Grande Open.

[5] Gyimesi is married to IM Nóra Medvegy.