Łukasz Marek Fabiański is a Polish professional footballer who plays as a goalkeeper for Premier League club West Ham United. Having begun his career at Legia Warsaw, Fabiański joined Arsenal for £2.1 million in 2007 and was mainly used as a backup, but played as the club won the 2014 FA Cup final.

Lukasz Fabiaski joined West Ham United from Swansea City in June 2018, winning the Hammer of the Year accolade at the end of his debut season in east London.

He was a Polish League title winner with Legia Warsaw as a 20-year-old before transferring to English football with Arsenal in 2007.