See main article: 2000 Gelsor Open Romania.
Alberto Martín was the defending champion but lost in the quarterfinals to Markus Hantschk.
Joan Balcells won in the final 6 - 4, 3 - 6, 7 - 6(7 - 1) against Hantschk.
A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.