| Jan-Chris de Koeijer | |
| Alias: | Jan Chris de Koeyer |
| Birth Date: | 1966 10, df=yes |
| Birth Place: | Yerseke, Netherlands |
| Background: | solo_singer |
| Occupation: | Musician |
| Instrument: | Vocals, bass |
| Genre: | Death metal |
| Years Active: | 1989-present |
| Associated Acts: | Gorefest, Ayreon |
Jan-Chris de Koeijer or Jan Chris de Koeyer (born 20 October 1966, Yerseke) is a Dutch bass player and singer. He is best known for his position in Gorefest. He also co-founded the band.[1]
He provided vocals for Ayreon's 1995 debut album, The Final Experiment.
After the disbandment, De Koeyer focused on a studio project called ColdPopCulture, together with Iljan Mol.
In 2004, he took part in the re-united Gorefest.
In 2006, he appeared at EPICA's concert in Paradiso (Amsterdam) as a guest grunter on the song Consign to Oblivion (A New Age Dawns #3).