Dudley Ryder, 2nd Earl of Harrowby, KG, PC, FRS (19 May 1798 – 19 November 1882), styled Viscount Sandon between 1809 and 1847, was a British politician.

He was an officer of the Staffordshire Yeomanry, being commissioned as a lieutenant in the Stafford Troop on 20 December 1819 and being promoted to captain on 26 March 1826.

[2] Harrowby was elected Member of Parliament for Tiverton in 1819, a seat he held until 1831[3] before switching to represent Liverpool until 1847.

[13][14] Thomas Jackson's animal welfare book Our Dumb Companions (1864) was dedicated to Harrowby.

Lord Harrowby remained a widower until his death at Sandon Hall on 19 November 1882, aged 84.