Albert Dariusz Sosnowski (born 7 March 1979) is a Polish former professional boxer who competed from 1998 to 2017.

Sosnowski made his professional debut in July 1998, defeating Czech fighter Jan Drobena via first-round knockout in Outrup, Denmark.

He fought Francesco Pianeta for the EBU-EU heavyweight title on 4 April 2009 with the fight going to a draw after twelve rounds.

On 18 December 2009, Sosnowski defeated Paolo Vidoz for the EBU heavyweight title, winning by unanimous decision.

He was subsequently lined up to face heavyweight Prizefighter series winner and former Olympic gold medallist, Audley Harrison for his first defence of the title, with the fight being scheduled for 9 April 2010.