Mark Cerny, American video game designer, programmer, producer and business executive
Mark Evan Cerny (born August 24, 1964) is an American video game designer, programmer, producer and entertainment executive.

Raised in the San Francisco Bay Area, Cerny attended UC Berkeley before dropping out to pursue a career in video games. In his early years, he spent time at Atari, Sega, Crystal Dynamics and Universal Interactive Studios before becoming an independent consultant under his own company Cerny Games in 1998. While at Sega, he established Sega Technical Institute, working on games including Sonic the Hedgehog 2 (1992).Cerny has since frequently collaborated with Sony Interactive Entertainment as a consultant, including being the lead designer for hardware of several PlayStation consoles, and has consulted with Naughty Dog and Insomniac Games since their creation in the 1990s, as well as other Sony first-party studios such as Sucker Punch Productions. He has also developed several games, notably the arcade game Marble Madness and the Knack series, and credited on many more for his consulting work.

In 2004, he was the recipient of the Lifetime Achievement Award from the International Game Developers Association, and was inducted into the Academy of Interactive Arts & Sciences Hall of Fame in 2010.