Tullius is a masculine given name and surname. It may refer to:
People Tullius Hammargren (1814–1899), Swedish Lutheran priest, ornithologist and textbook writer Tullius Cicero Tupper (1809–1866), American lawyer, newspaper publisher and Confederate major general in the American Civil War Bob Tullius (born 1930), American race car driver and racing team owner Rexford Tullius (born 1987), American swimmer
Fictional characters General Tullius, in the video game The Elder Scrolls V: Skyrim