Rex may refer to: Adam Rex (born 1973), American illustrator and author of children's books George Rex (1765–1839), British-born entrepreneur Isaac Rex (born 1998), American football player Jim Rex (born 1941), the 16th and current South Carolina Superintendent of Education John Rex (1925–2011), British sociologist Knud Rex (1912–1968), Danish stage and film actor Ludwig Rex (1888–1979), German film actor of the silent era Marcus Rex (1886–1971), the last British Resident of Perak during the World War II waged in British Malaya Millicent Barton Rex (1901–1966), American historian, educator Rico Rex (born 1976), former German pair skater Robley Rex (1901–2009), World War I-era veteran and, at the age of 107, one of two remaining U.S. veterans related to the First World War Simon Rex (born 1974), American actor and comedian Theresa Rex, Danish actress and singer