Thomas "Tom" Grummett (born 1959) is a Canadian comic book artist and penciller. He is best known for his work as penciller on titles such as The New Titans, The Adventures of Superman, Superboy, Power Company, Robin, New Thunderbolts and Heroes.
Tom Grummett began providing finished artwork over George Pérez's layouts on The New Titans #58 (Sept. 1989). He worked with Marv Wolfman and Pérez on the "A Lonely Place of Dying" storyline which introduced Tim Drake as the new Robin. Grummett remained on The New Titans after Pérez's departure and helped Wolfman revitalize the title. He began a long association with the Superman franchise when he drew Action Comics #665 (May 1991) and then helped writer Louise Simonson and artist Jon Bogdanove launch a new title, Superman: The Man of Steel in July 1991. Grummett drew part of The Adventures of Superman #480 (July 1991) and became the main artist on that series with the following issue and then worked on the "Panic in the Sky" crossover in 1992.