1999–2000 Országos Bajnokság I (men's water polo) was the 94th water polo championship in Hungary.
First stage #TeamMWDLG+G−PComments1.BVSC-Brendon181611201110332.Ferencvárosi TC-Thomas Jeans181512173104313.Bp. Honvéd-Domino181305196132264.Vasas SC-Plaket181224177137265.Újpesti TE-Santal-Taxi200018846155135206.Kontavill-Szentesi VK186111126167137.ÚVMK BauSystem-Eger185310128149138.Csanádi Árpád KSI18311411618179.Szolnoki VSC183114120200710.BEAC1812151111882deducted 2 points
Championship Playoff Pld - Played; W - Won; L - Lost; PF - Points for; PA - Points against; Diff - Difference; Pts - Points.
Championship Playoff
Final standing
Qualified for the 2000–01 LEN Champions League Qualified for the 2000–01 LEN Cup Winners' Cup Qualified for the 2000–01 LEN Cup Relegation to the 2000–01 OB I/B
RankTeam Ferencvárosi TC-Thomas Jeans BVSC-Brendon Domino-Bp. Honvéd Vasas SC-Plaket 5 Újpesti TE-Santal-Taxi20006 Kontavill-Szentesi VK 7 ÚVMK BauSystem-Eger 8 Csanádi Árpád KSI 9 Szolnoki VSC10 BEAC
1999–00 OB I ChampionsFerencvárosi TC-Thomas Jeans21st Title Zoltán Kósz, Bulcsú Székely, Attila Takács, Márk Matajsz,Csaba Kiss, Máté Hesz, Péter Tiba, Balázs Nyéki, Zsolt Vogel,Ádám Steinmetz, Attila Takács, Tamás Haufe, Norbert HosnyánszkyHead coachLajos Vad
Sources Gyarmati Dezső: Aranykor (Hérodotosz Könyvkiadó és Értékesítő Bt., Budapest, 2002.)