John Fielden Brocklehurst, 1st Baron Ranksborough CB, CVO (13 May 1852 – 28 February 1921), was a British soldier, courtier and Liberal politician.

His mother was Anne, daughter of 'Honest' John Fielden, Member of Parliament for Oldham.

In South Africa he commanded the 2nd Cavalry Brigade of the Natal Field Force and was in Ladysmith throughout the siege, but completed his service on the Staff and was placed on half-pay in January 1901.

[4] The title derived from his seat of Ranksborough Hall at Langham, Rutland, which he constructed in 1893 and which was often visited by members of the royal family.

[10] Lord Ranksborough married Louisa Alice Parsons, daughter of the Hon.