Jan-Olof "Ove" Grahn (May 9, 1943 in Norra Fågelås – July 11, 2007 in Alingsås) was a Swedish footballer.
Grahn played for IF Elfsborg. He was then a professional in Switzerland for 10 years.
Grahn was a member of the Swedish squad in the World Cup 1970 and in 1974 where he scored the winning goal against Uruguay.