Országos Bajnokság I (women's water polo)
The Women's Water Polo First League is the premier Hungarian championship for women's water polo clubs. First held in 1984, it is currently contested by ten teams. The champion takes part in the Champions' Cup.
2017-18 teams
- BVSC Budapest
- Dunaújvárosi Egyetem
- Egr
- Ferencváros
- Honvéd
- Szeged
- Szentes
- Tatabánya
- UVSE
- UVSE Margitsziget
Previous winners
- 1984 : Vasas
- 1985 : Vasas
- 1985/86 : BVSC
- 1986/87 : Szentes
- 1987/88 : BVSC
- 1988/89 : BVSC
- 1989/90 : Szentes
- 1990/91 : BVSC
- 1991/92 : Szentes
- 1992/93 : BVSC
- 1993/94 : Szentes
- 1994/95 : Szentes
- 1995/96 : Szentes
- 1996/97 : Szentes
- 1997/98 : Szentes
- 1998/99 : Szentes
- 1999/00 : Szentes
- 2000/01 : Dunaújváros
- 2001/02 : Dunaújváros
- 2002/03 : Dunaújváros
- 2003/04 : Dunaújváros
- 2004/05 : Dunaújváros
- 2005/06 : Honvéd
- 2006/07 : Honvéd
- 2007/08 : Honvéd
- 2008/09 : Dunaújváros
- 2009/10 : Dunaújváros
- 2010/11 : Dunaújváros
- 2011/12 : Eger
- 2012/13 : Eger
- 2013/14 : Szentes
- 2014/15 : UVSE
- 2015/16 : UVSE
- 2016/17 : UVSE
- 2017/18 : UVSE
- 2018/19 : UVSE
Performances
Performance by club
The teams in Bold play in the 2018-19 season of OB I.| Club | Winners | Runners-up | Third place | Winning years |
| Szentesi VK | 1987, 1990, 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2014 | |||
| Dunaújvárosi Főikola VE | 2001, 2002, 2003, 2004, 2005, 2009, 2010, 2011 | |||
| Budapesti VSC | 1986, 1988, 1989, 1991, 1993 | |||
| UVSE | 2015, 2016, 2017, 2018, 2019 | |||
| Budapesti Honvéd SE | 2006, 2007, 2008 | |||
| Vasas SC | 1984, 1985 | |||
| Egri VK | 2012, 2013 | |||
| Orvosegyetem SC | - | |||
| Budapesti EAC | - |
Performance by counties
The following table lists the Hungarian water polo champions by counties of Hungary.| County | Titles | Winning Clubs |
| Budapest | BVSC Budapesti Honvéd SE UVSE Vasas | |
| Csongrád | Szentes | |
| Fejér | Dunaújváros | |
| Heves | Eger |
- The bolded teams are currently playing in the 2017-18 season of the Hungarian League.