Rosenborg may refer to:
- Denmark
- Rosenborg Castle, a castle in Copenhagen, Denmark
- Norway
- Rosenborg, Trondheim, a place in Trondheim, Norway
- Rosenborg BK, an association football club based in Trondheim, Norway
- Rosenborg IHK, an ice hockey club based in Trondheim, Norway
- Rosenborg (station) of the Oslo Tramway
- Other
- Rosenborg (cheese)