Anthony Sigwart de Rosenroll (December 4, 1857 – May 8, 1945) was a politician and businessman in the Canadian province of Alberta. Born in Italy to a family of noble Swiss heritage, he spent his early adulthood in Australia and New Zealand before settling in Canada in 1895. He became a prominent resident of Wetaskiwin, and was acclaimed as its representative to the Legislative Assembly of the Northwest Territories in 1898 and 1902.