Eric I
Eric I may refer to:
- Erik Björnsson, Eric I of Sweden
- Eric I of Norway, known as Eric Bloodaxe
- Eric I of Denmark
- Eric I, Duke of Schleswig
- Eric I, Duke of Saxe-Lauenburg
- Eric I, Duke of Mecklenburg
- Eric I, Count of Hoya, German nobleman, ruling Count of Upper Hoya 1377–1426
- Eric of Pomerania, Duke Eric I of Stolp
- Eric I, Duke of Brunswick-Lüneburg, reigning prince of Calenberg-Göttingen, also known as Eric the Elder
- Eric I, Duke of Brunswick-Grubenhagen, reigning prince of Grubenhagen, also known as Eric the Winner