Petter Sørlle (February 16, 1884 - May 29, 1933) was a Norwegian whaling captain and inventor.
He invented slipways for whaling ships which he patented in 1922. His invention was a device by which the whale could be fully drawn to the ship. He was the first manager of the United Whalers whaling shore station at Stromness, South Georgia. He carried out surveys and is commemorated by several place names in Antarctic waters.