| Country: | England |
| Coordinates: | 51.0508°N -1.6102°W |
| Official Name: | Frenchmoor |
| Population: | 25 |
| Population Ref: | [1] |
| Shire District: | Test Valley |
| Shire County: | Hampshire |
| Region: | South East England |
| Constituency Westminster: | Romsey and Southampton North |
| Post Town: | Salisbury |
| Postcode District: | SP5 |
| Postcode Area: | SP |
| Os Grid Reference: | SU274280 |
| London Distance: | ENE |
Frenchmoor is a hamlet and civil parish in the Test Valley district of Hampshire, England, close to the border with Wiltshire. According to the 2001 census it had a population of 25. The parish is about 10miles north-west of Romsey. Frenchmoor is roughly equisidiant between the larger settlements of East Tytherley and West Tytherley.