Stewie may refer to: People Stewie Dempster (1903–1974), former New Zealand cricketer and coach Breanna Stewart (born 1994), American basketball player nicknamed "Stewie" Animals Stewie (cat), once the world's longest domestic cat Characters Stewie the Duck, the titular character in the eponymous children's book series and app created by Kim and Stew Leonard Jr. Stewie Griffin, a fictional character in the American animated TV series Family Guy See also Stew (disambiguation) Stewart (disambiguation) Stu (disambiguation) Stuart (disambiguation)