David Lillieström Karlsson (born April 12, 1993) is a Swedish former professional ice hockey player, who last played with Guildford Flames of the UK's Elite Ice Hockey League (EIHL).
In the 2009-10 he started to play with the AIK J18 team in the J18 Elit.
After a spell with Östersunds IK of the Swedish Elitserien, Lillieström Karlsson moved to the UK to sign for Guildford Flames in June 2017.After suffering a concussion while playing for Guildford, Lillieström Karlsson was forced to retire at the age of 24.