Lars Karlsson may refer to:

• Lars Karlsson (handballer) (born 1948), Swedish handball player
• Lars Erik Karlsson, Swedish darts player
• {{ill|Lars Karlsson (chess player)|de|Lars Karlsson (Schachspieler)}} (born 1955), Swedish Grandmaster
• Lars Karlsson (ice hockey) (born 1960), Swedish ice hockey player
• Lars Peter Karlsson (born 1966), Swedish ice hockey player

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