List of rulers named Olaf
Olaf ( Olav ) is the ruler name of
- Olaf Magnusson (1099–1115) King of Norway
- Olaf Guthfrithsson († 941), (as Olaf I. 939–941 King of Jorvik)
- Olav I. Tryggvason (968–1000), King of Norway
- Olaf I (Denmark) (1050-1095), King of Denmark
- Olav II. Haraldsson (995-1030), King of Norway and saint
- Olaf II Björnsson (around 970-around 975), King of Sweden
- Olav II (Denmark) (1370–1387), King of Denmark and Norway
- Olaf III. Skötkonung (around 995-1022) King of Sweden
- Olav III. (Norway) († 1093), King of Norway
- Olav V (Norway) (1903–1991), King of Norway