Lars Erik Karlsson (born October 28, 1964) is an Swedish former professional darts player who has competed members in the British Darts Organisation (BDO) during the 1980s and 1990s.

Karlsson played three successive World Championships in 1987, 1988 and 1989. He reached the quarter-finals in 1987, defeating Scotland's Peter McDonald in the first round and then defeated Brian Cairns in round two before losing to defending champion Eric Bristow. In 1988, he lost 3-0 in the first round to Paul Reynolds and in 1989, he defeated Tony Payne in the first round before losing to Peter Evison in round 2.

Karlsson played in the 1988 MFI World Pairs with Mike Gregory he lose to Jocky Wilson and Ritchie Gardner by 0–3 sets.

Karlsson played his runner up in the 1988 BDO Nations Cup Championship of represented by Team Sweden's Magnus Caris & Stefan Lord he beating by America's Jerry Umberger, Gerald Verrier & Tony Payne and Wales Eric Burden, Ken Thomas & Leighton Rees and the semi finalist to Belgium's Felix Smout, Bob Renard & Johnny Deley by 10–6 and before losing to England's Eric Bristow, John Lowe & Bob Anderson by 2–10 legs.

• 1987: Quarter Finals: (lost to Eric Bristow 1–4) (sets)
• 1988: Last 32: (lost to Paul Reynolds 0–3)
• 1989: Last 16: (lost to Peter Evison 0–3)

• Profile and stats on Darts Database