Botleys Mansion is a Palladian mansion house in the south of Chertsey, Surrey, England. The house was built in the 1760s by builders funded by Joseph Mawbey and to designs by Kenton Couse. The elevated site once bore a 14th century manor house seized along with all the other manors of Chertsey from Chertsey Abbey, a very rich abbey, under Henry VIII's Dissolution of the Monasteries and today much of its land is owned by two hospitals, one public, one private and the local authority. The remaining mansion and the near park surrounding were used for some decades as a colony hospital and as a private care home. The building is owned and used by Bijou Wedding Venues Limited.