Adeline Marie Russell, Duchess of Bedford, GBE (née Somers-Cocks; 24 September 1852 – 12 April 1920) was a British advocate for penal reform.

Lady Adeline Marie Somers was born in 1852 to Virginia (Pattle) and Charles Somers-Cocks, Viscount Eastnor.

Julia Stephen, Virginia Woolf's mother, was her first cousin (she was the daughter of Maria Theodosia "Mia" Jackson whose maiden name was Pattle).

Her reports gathered together the political parties and within a year the Portuguese had released their prisoners and Adeline was seen as the catalyst.

For this she was appointed Dame Grand Cross of the Order of the British Empire (military division) in 1919.