William Jones "Boileryard" Clarke (October 18, 1868 – July 29, 1959) was an American Major League Baseball player from New York City who played catcher from 1893 to 1905.

Clarke played for the Baltimore Orioles (1893–1898), Boston Beaneaters (1899–1900), Washington Senators (1901–1904), and New York Giants (1905).

"[2][3] During his major league career, he also assisted the Princeton University baseball team as a coach from 1897 to 1901.

[2] Bill Clarke Field, the home of Princeton baseball since 1961, is named in his honor.

[4][5] Clarke died in Princeton, New Jersey, at the age of 90, of complications suffered from a broken hip resulting from a fall.