1905 Országos Bajnokság I (men's water polo) was the second waterpolo championship in Hungary. There were one round of matches with four teams.
Final list #TeamMWDLG+G−P1.Balaton ÚE321012752.Óbudai TE3201111243.MÚE3111231134.Ferencvárosi TC30034200
* M: Matches W: Win D: Drawn L: Lost G+: Goals earned G−: Goals got P: Point
OB I 1905Champions Balaton ÚE2nd Title
Sources Gyarmati Dezső: Aranykor (Hérodotosz Könyvkiadó és Értékesítő Bt., Budapest, 2002.)