Alex or Alexander Forsyth may refer to:

Alex Forsyth (American football) (born 1999), American football player Alex Forsyth (ice hockey) (1955–2024), Canadian ice hockey player Alex Forsyth (footballer, born 1952) (born 1952), Scottish footballer Alexander John Forsyth (1769–1843), Scottish minister who first successfully used chemicals to prime gunpowder in fire-arms Alex Forsyth (footballer, born 1928) (1928–2020), Scottish footballer Alex Forsyth (BBC broadcaster), a BBC News correspondent