Sir William Findlater (1824–1906) was an Irish Liberal politician who sat in the House of Commons from 1880 to 1885. Findlater was the son of William Findlater, a merchant of Derry. He became a solicitor in 1846 and was also a partner in the Mountjoy Brewery. In 1878, he was elected president of the Incorporated Law Society of Ireland, for which he was knighted. He served as a director of the Dublin Artisans' Dwellings Company. Findlater died at the age of 81.