Coordinates: 51°24′07″N 0°01′23″W / 51.402°N 0.023°W
Kelsey Park is a public park in Beckenham in the borough of Bromley, Greater London. It historically formed the landscaped park of the Kelsey Manor Estate.
The original mansion was built around 1408 for William Kelshulle and demolished around 1800. A second mansion was built for Richard Bennett around that time and then acquired by Peter Richard Hoare, the elder (a partner in the banking firm C. Hoare & Co) in 1835. Peter Richard Hoare, the elder converted the manor into a rambling Gothic Revival house. The house passed to Peter Richard Hoare, the younger in 1849: he added a chapel, designed by Sir George Gilbert Scott, in 1869. It then passed to Charles Arthur Richard Hoare in 1877. The land adjoining Wickham Road was sold in the 1890s and laid out with large Arts and Crafts movement houses designed by Francis Hooper. The house became a convent for the Sisters of All Saints in 1895 and then became Kepplestone School for the Daughters of Gentlemen in 1901. Following the death of Charles Arthur Richard Hoare in 1908, Beckenham Urban District Council acquired the estate in 1911.
Kelsey Park was officially opened to the public by Right Honourable John Burns MP, President of the Local Government Board, on 31 May 1913. The house itself was used by the British Army during World War I and was demolished in 1921.