Samuel Casey Wood (December 27, 1830 – April 11, 1913) was a Canadian businessman and politician, who served as a member of the Legislative Assembly of Ontario from 1871 to 1883, representing the electoral district of Victoria South as a Liberal member. Wood served as provincial treasurer from 1877 to 1883. He died in Toronto on April 11, 1913. His brother Alpheus Field Wood also served as a member of the Ontario assembly.