William Robbins may refer to: William Robbins (Western settler) (1848–1933), veteran of the Civil War and early settler of the Curlew Valley of Idaho and Utah William Robbins (athlete) (1885–?), American athlete competing at the 1908 Summer Olympics William D. Robbins (1874–1952), mayor of Toronto in the 1930s William Jacob Robbins (1890-1978), American botanist William M. Robbins (1828–1905), U.S. Representative from North Carolina William Robbins (actor) (died 1645), comic actor in the Jacobean and Caroline eras