| Guerou | |
| Native Name: | كرو |
| Settlement Type: | Commune and town |
| Pushpin Map: | Mauritania |
| Pushpin Label Position: | bottom |
| Pushpin Mapsize: | 300 |
| Pushpin Map Caption: | Location in Mauritania |
| Subdivision Type: | Country |
| Subdivision Type1: | Region |
| Subdivision Name: | Mauritania |
| Subdivision Name1: | Assaba Region |
| Population As Of: | 2013 Census[1] |
| Population Total: | 22,323 |
| Timezone: | UTC |
| Utc Offset: | ±0 |
| Coordinates: | 16.8167°N -61°W |
| Native Name Lang: | ar |
Guerou is a city and department in south-central Mauritania. Guerou is the region's largest city after Kiffa, capital of Assaba Region. It is located at around 16.8167°N -61°W.
According to the official census, the city's population was 14,418 in 1996, which ranked it in 15th place by population in the country.[2]
At the 2013 census report, its population was 22,323.