| Unit Name: | Army Group German Crown Prince |
| Native Name: | Heeresgruppe Deutscher Kronprinz |
| Dates: | 1915–1918 |
| Colours: | --> |
| Colours Label: | --> |
| Battles: | World War I |
| Disbanded: | 11 November 1918 |
| Commander1: | Wilhelm of Prussia |
| Commander1 Label: | Supreme Commander |
The Army Group German Crown Prince or Army Group B (German: Heeresgruppe Deutscher Kronprinz) was an Army Group of the German Army, which operated on the Western Front under command of Wilhelm, German Crown Prince, between 1 August 1915 and 11 November 1918 during World War I.