| Marstow | |
|---|---|
 St Matthew's Church, Marstow | |
  Marstow Location within Herefordshire | |
| OS grid reference | SO553192 |
| • London | 112 mi (180 km) ESE |
| Civil parish |
|
| Unitary authority | |
| Ceremonial county | |
| Region | |
| Country | England |
| Sovereign state | United Kingdom |
| Post town | ROSS-ON-WYE |
| Postcode district | HR9 |
| Dialling code | 01600 |
| Police | West Mercia |
| Fire | Hereford and Worcester |
| Ambulance | West Midlands |
| UK Parliament | |
Marstow is a hamlet and civil parish in south eastern Herefordshire, England. Most of the parish is within the Wye Valley Area of Outstanding Natural Beauty.