Chertsey Abbey was a Benedictine monastery founded in the 7th century in Chertsey, England. It was established by St. Erkenwald, who later became the Bishop of London. The abbey played a significant role in the local community and was known for its wealth and influence during the medieval period. The abbey was dissolved in 1537 during the Dissolution of the Monasteries under King Henry VIII. Today, the site is marked by the remains of the abbey, which include parts of the original structure and a few artifacts, serving as a reminder of its historical significance.