Jan Viktor Olsson (born 18 March 1944 in Kungshamn, Bohuslän) is a Swedish former footballer.
Olsson played for Gais before he became a professional with VfB Stuttgart in 1969. In 1971, he returned to Gais. He is remembered as a rough midfielder and defender. In the 1970 FIFA World Cup he marked the Italian forward Luigi Riva with tenacity and vigor. In total he was capped 22 times for the Swedish national team.
He was the manager of Eintracht Braunschweig from July 1994 until September 1995.