Robert Sun (born in Shanghai, China) is a game designer who invented the math card game 24. He holds numerous copyrights in the field of educational games and also runs the game company Suntex.
In 1970, he graduated from the University of Pennsylvania with a bachelor's degree in electrical engineering. A Pennsylvania native, he has been living in Easton, Pennsylvania, after he moved to Philadelphia at the age of 9. According to his genealogical research, he is a descendant of the ancient Chinese military strategist Sun Tzu.