1943 Országos Bajnokság I (men's water polo) was the 37th water polo championship in Hungary. There were eleven teams who played one-round match for the title.

Final list #TeamMWDLG+G−PComments1.MAC98104212172.BSE9711719153.Ferencvárosi TC97115224154.Újpesti TE9414352595.Tatabányai SC9315203876.MAFC9315133377.Weiss Manfréd TK9306163568.Marosvásárhelyi SE9225184669.MUE92161133510.BEAC91171235311.Erzsébeti TC-------deleted

* M: Matches W: Win D: Drawn L: Lost G+: Goals earned G−: Goals got P: Point

OB I 1943Champions Magyar AC2nd Title

Sources Gyarmati Dezső: Aranykor (Hérodotosz Könyvkiadó és Értékesítő Bt., Budapest, 2002.)