Sir Robert Loder, 1st Baronet, DL, JP (7 August 1823 – May 1888) was an English landowner, magistrate and Conservative politician.

[1] He inherited a considerable fortune from his father and had extensive estates in Northamptonshire and Sussex as well as in Russia and Sweden.

[2] He was a Justice of the Peace and Deputy Lieutenant for Sussex and a JP for Northamptonshire.

Sir Robert and Lady Loder had ten children: Sir Robert and Lady Loder had a number of homes, including Beach House in Worthing, West Sussex where Sir Robert died in May 1888, at the age of sixty-four, and was buried in the churchyard of Whittlebury, where he had restored the church.

On 2 March 1905, "The Dowager Lady Loder" was a guest at the wedding of her granddaughter, Miss Mary Emma Burrell, daughter of the Sir Charles Raymond Burrell, 6th Baronet to Alan Cecil Lupton, a grandson of Lady Loder's first cousin, Anna Jane Lupton (née Busk, 1813–1888).