| Official Name: | Iouik |
| Pushpin Map: | Mauritania |
| Pushpin Label Position: | bottom |
| Pushpin Mapsize: | 300 |
| Pushpin Map Caption: | Location in Mauritania |
| Coordinates: | 19.8494°N -16.3308°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Mauritania |
| Subdivision Type1: | Region |
| Subdivision Name1: | Dakhlet Nouadhibou |
Iouik, also spelled Iwik, is a coastal town in western Mauritania. Located in the Banc d'Arguin National Park within the Dakhlet Nouadhibou region, it sits on a small peninsula.[1]
Nearby towns and villages include Uad Guenifa (73.4 nm), Cansado (72.0 nm), Tanoudert (21.5 nm), Akjoujt (108.4 nm), El Mamghar (32.4 nm), Regbet Thila (28.6 nm) and Tikattane (50.1 nm) .
Iouik is very close to the island of Tidra lying in the southwest some 3 km distant, further west is Niroumi and around 10 km north are the Kiaone islands.