Charles Christopher Keyser (6 December 1871 – 30 October 1965) was a member of the Western Australian Legislative Assembly from 1904 to 1905.
Born at a timber station in Busselton, Charles Keyser was the son of American timber contractor and master builder Charles Donat Keyser.
Apprenticed in the printing trade, he followed a variety of professions in his youth.
On 21 April 1898, he married Lucy Sanderson in Ballarat, Victoria.
He held the seat until the election of 27 October 1905, when he was defeated by Edward Barnett.