William Alfred Shalders (12 February 1880 in Kimberley, Northern Cape – 19 March 1917 in Cradock, Eastern Cape ) was a South African cricketer who played in 12 Tests from 1899 to 1907.

William Shaler (1773 – March 29, 1833) was an American government official who served as a diplomat and confidential agent in several foreign locations, including Algiers, Mexico and Cuba.

William J. Thaler, Ph.D. (December 4, 1925 – June 5, 2005) was an American experimental physicist. Working for the Office of Naval Research (ONR) at the Naval Research Laboratory in the 1950s, Thaler developed an early warning system to detect the launching of ballistic missiles using high frequency radio waves bounced between the Earth's surface and the ionosphere, part of the upper atmosphere.

Colonel Timothy Shaler Williams (August 1, 1862 - June 3, 1930) was an American journalist, and later president of the Brooklyn Rapid Transit Company.