Attila Decker

Attila Decker (born 25 August 1987) is a Hungarian male water polo player. He is part of the Hungary men's national water polo team. He won a gold medal at the 2013 World Championships. He is the younger brother of Ádám Decker water polo player.

National

 * World Championships: Gold medal world centered-2.svg Gold medal - 2013; Silver medal world centered-2.svg Silver medal - 2017
 * European Championship: Gold medal world centered-2.svg Gold medal - 2020; Silver medal europe.svg Silver medal - 2014; Bronze medal europe.svg Bronze medal - 2008, 2016
 * FINA World Cup: Silver medal blank.svg Silver medal - 2014
 * FINA World League: Silver medal blank.svg Silver medal - 2013, 2014

Club
Eger (Brendon-Fenstherm-ZF-Eger)
 * Hungarian Cup (1x): 2007
 * LEN Cup runners-up: 2007–08

Szolnok (Szolnoki Dózsa-KÖZGÉP)
 * Hungarian Championship (2x): 2014–15, 2015–16
 * Hungarian Cup (1x): 2014