Wargrave is a historic village and civil parish in Berkshire, England. The village is primarily on the River Thames but also along the confluence of the River Loddon and lies on the border with southern Oxfordshire. The village has many old listed buildings, two marinas with chandlery services for boats, a boating club and rises steeply to the northeast in the direction of Bowsey Hill, with higher parts of the village generally known as Upper Wargrave. In Upper Wargrave is a Recreation Ground with a cricket club, bowls club, football pitches and tennis club.

The River Thames, known alternatively in parts as the River Isis, is a river that flows through southern England including London. At 215 miles (346 km), it is the longest river entirely in England and the second-longest in the United Kingdom, after the River Severn.