Magnus Haraldsson
Magnus Haraldsson may refer to:
- Maccus mac Arailt, King of the Isles, also known as Magnus Haraldsson
- Magnus II of Norway, King of Norway, also known as Magnus Haraldsson
- Magnus Haraldsson (son of Harald Gille), King of Norway
- Magnus Haraldsson (bishop of Skara), 1522–1529, see Diocese of Skara#History