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