- Source: Willenborg
- Piala DFB 2022–2023
- Jenewa Terbuka
- Piala DFB 2021–2022
- Grand Prix Hassan II
- Willenborg
- Frank Willenborg
- Chuck Willenborg
- Blaine Willenborg
- The Apprentice (American TV series) season 2
- Lower Saxony
- 1987 Bavarian Tennis Championships – Doubles
- Cardiovascular disease
- 2024–25 FC Bayern Munich season
- 1987 U.S. Clay Court Championships – Doubles
Willenborg is a German surname. Notable people with the surname include:
Blaine Willenborg (born 1960), American tennis player
Frank Willenborg (born 1979), German football referee