George Jan Kooymans (born 11 March 1948, The Hague, Netherlands) is a Dutch guitarist and vocalist. He is best known for his work with the Dutch group Golden Earring. Kooymans wrote "Twilight Zone", the group's only Top 10 Pop Single on the US Billboard Hot 100 which hit No. 1 on the Billboard Top Album Tracks chart.
- Jojo 1971
- Solo 1987
- On location as Kooymans-Carillo with Frank Carillo 2010
- Lovin' and Hurtin' / For Gail 1971
- Lost For Love / The Devil Rides Again Tonight 1987
- The Beat Goes On / Again 1987
- World of Our Own / All Things Are Light 1987