Albert Rubidge Washington Stumbles, GLM, ICD (20 January 1904 – 2 August 1978) was a Southern Rhodesian lawyer and politician. After serving as a minister under Garfield Todd and Edgar Whitehead, Stumbles became the Speaker of the Legislative Assembly of Southern Rhodesia (House of Assembly from 1970) in 1964, a post he held until 1972. As Speaker, Stumbles is best remembered for his acceptance of Southern Rhodesia's Unilateral Declaration of Independence in 1965.