Petter Martinsen
| Olympic medal record | ||
|---|---|---|
| Men's gymnastics | ||
Competitor for  Norway
| ||
| Gold | 1912 Stockholm | Team, free system |
Petter Martinsen (May 14, 1887 – 1972) was a Norwegian gymnast who competed in the 1912 Summer Olympics.
He was part of the Norwegian team, which won the gold medal in the gymnastics men's team, free system event.