1940 Országos Bajnokság I (men's water polo) was the 34th water polo championship in Hungary. There were ten teams who played one-round match for the title.
Final list #TeamMWDLG+G−P1.BSE99005017182.Újpesti TE9801625163.MAC97025210144.Ferencvárosi TC96032923125.MTK9315193176.BEAC9315203877.MOVE Eger SE9225132568.III. ker. TVE9306154369.Tatabányai SC92071540410.Nemzeti SC900910530
* M: Matches W: Win D: Drawn L: Lost G+: Goals earned G−: Goals got P: Point
OB I 1940Champions BSE1st Title
Sources Gyarmati Dezső: Aranykor (Hérodotosz Könyvkiadó és Értékesítő Bt., Budapest, 2002.)