Steinar Pettersen (born 29 April 1945 in Drammen) is a former football and bandy international from Norway. He played for Strømsgodset IF from 1962 to 1975. 282 matches, scoring 234 goals in football, he played even more and scored likewise for the bandy team. He won 6 caps in football and 25 in bandy. He won a silver medal with Norway in the Bandy World Championships in Moscow 1965.
He scored all four goals in the Norwegian bandy final of 1962, beating Sparta 4-0. He was then 16 years of age. He won six Norwegian championships in this sport. He won the Norwegian 1st division (football) in 1970, and thre Championships (the Cup) in 1969, 1970 and 1973.
Pettersen played European football against Nantes (France), Leeds, Liverpool and Arsenal and won acclaim from the English players and managers.
He later managed Strømsgodset IF.