1947 Országos Bajnokság I (men's water polo) was the 41st water polo championship in Hungary. There were twelve teams who played one-round match for the title.
Final list #TeamMWDLG+G−P1.Vasas SC1110018118202.Újpesti TE119118012193.Ferencvárosi TC118216115184.MTK117137628155.MAFC114432917126.Nemzeti SC115153636117.Egri Barátság115153432118.MMUE114253728109.Szegedi MTE114163448910.Előre SE112181939511.Csepeli MTK111010982212.Tipográfia NYTE11001121330
* M: Matches W: Win D: Drawn L: Lost G+: Goals earned G−: Goals got P: Point
OB I 1947Champions Vasas1st Title
2. Class 1. KaSE 14, 2. Neményi MADISZ 13, 3. MTE 13, 4. Tatabányai SC 12, 5. BEAC 6, 6. Cegléd 6, 7. Postás 4, 8. VAC 2, 9. MÁVAG 0 point. A BEAC-Postás match result was fail.
Sources Gyarmati Dezső: Aranykor (Hérodotosz Könyvkiadó és Értékesítő Bt., Budapest, 2002.)