Sir Walter Barttelot, 1st Baronet, CB (10 October 1820 – 2 February 1893) was a Conservative Party politician in the United Kingdom who served as Member of Parliament for several constituencies.

Sussex Police Headquarters was located there and current photographs of Barttelot Road are featured (Hidden Horsham).

Barttelot was created a baronet, of Stopham in the County of Sussex, on 14 June 1875,[5] and made a Companion of the Order of the Bath in 1880.

He became a director of the London, Brighton and South Coast Railway in August 1864, and served as its chairman from April to July 1867.

Barttelot married firstly Harriet, daughter of Sir Christopher Musgrave, 9th Baronet, in 1852.