Łukasz Marek Fabiański (born 18 April 1985) is a Polish professional footballer who plays as a goalkeeper for Premier League club West Ham United and the Poland national team.
Having begun his career at Legia Warsaw, Fabiański joined Arsenal for £2.1 million in 2007, and was mainly used as back-up, but played as the club won the 2014 FA Cup Final. On the expiration of his contract in 2014, he joined Swansea City, and played 150 total matches in four years. He then signed for West Ham for £7 million.
A full international for Poland since 2006, Fabiański has represented his country on over 50 occasions. He was included in the squads for the 2006 FIFA World Cup, UEFA Euro 2008, Euro 2016 and 2018 FIFA World Cup.
On 20 June 2018, Premier League club West Ham United announced the transfer of Fabiański for £7 million. He signed a three-year contract with the club. Fabiański, the first Pole to play first-team football for West Ham, was installed as first-choice ‘keeper at the start of the 2018–19 season. For his performances throughout the season, during which he was ever-present, he was named Hammer of the Year.
In September 2019 he suffered a hip injury.