Haddon is a masculine given name which may refer to:
- Haddon Donald (1917–2018), New Zealand former soldier, businessman and politician
- Haddon King (1905-1990), Australian geologist
- Haddon Mason (1898-1966), British film actor
- Haddon Robinson (1931-2017), American evangelical preacher and professor
- Haddon Storey (born 1930), Australian former politician
- Haddon Sundblom (1899-1976), American artist