Blagg is an English surname and it may refer to:
Alicia Blagg (born 1996), English diver Curtis Blagg, American IT Specialist Edward Blagg (1918–1976), English cricketer Mary Adela Blagg (1858–1944), English astronomer Max Blagg, English poet Paul Blagg (born 1960), English race walker
Fictional characters Temiri Blagg, a minor character in the film Star Wars: Episode VIII - The Last Jedi