Bo Jonas Hil Karlsson (born 12 October 1949) is a former football referee from Sweden. He is mostly known for refereeing one match at the 1994 FIFA World Cup. He also refereed the 1991 UEFA Cup Winners' Cup Final between Manchester United and FC Barcelona.
In 2010, Karlsson participated in the Swedish Television documentary Rättskiparen (Swedish title – English title: The Referee) about the top European referee Martin Hansson and his road to ref the 2010 FIFA World Cup in South Africa.
| Preceded by UEFA Cup Winners' Cup Final 1990 Bruno Galler |
UEFA Cup Winners' Cup Final Referees Final 1991 Bo Karlsson |
Succeeded by UEFA Cup Winners' Cup Final 1992 Pietro d'Eliai |