| Soop | |
| Local Name: | Sop, Tsiof |
| Coordinates: | -0.89°N 131.2°W |
| Pushpin Map: | Indonesia Southwest Papua#Indonesia Western New Guinea |
| Pushpin Map Caption: | Location in Southwest Papua##Location in Western New Guinea |
| Location: | Sele Strait |
| Length Km: | 3.3 |
| Coastline Km: | 8 |
| Elevation M: | 53 |
| Country: | Indonesia |
| Country Admin Divisions Title: | Province |
| Country Admin Divisions: | Southwest Papua |
| Country Admin Divisions Title 1: | City |
| Country Admin Divisions 1: | Sorong |
| Country Admin Divisions Title 2: | District |
| Country Admin Divisions 2: | Sorong Islands |
| Population: | 1,378 |
| Population As Of: | mid 2021 estimate |
Soop, also known as Sop or Tsiof, is an island in Southwest Papua province of Indonesia, located in the north of Sele Strait, and off the northwestern coast of the Bird's Head Peninsula. It lies at a distance of about west of the city of Sorong on the mainland, west of the island of Doom, northwest of the uninhabited island of Nana, north-east of the island of Yefman, and south of the island of Raam.Soop is long and up to wide, with an area of .
There is a settlement covering the north and east coasts of the island. It has a population of 1,378 (according to the official estimate for mid 2021) and constitutes a kelurahan within the district of Sorong Islands within the City of Sorong. Outside the settlement, and apart from a small mangrove patch in the southeast, the island is covered by shrub and savannah-type vegetation. Its highest point is at an elevation of .