William Stuart Reyburn (December 17, 1882 – July 25, 1946) was a Republican member of the U.S. House of Representatives from Pennsylvania.
Reyburn was born in Philadelphia, Pennsylvania, to John E. Reyburn and Margretta (Crozier). He married Georgie Fontaine Maury, of Washington, June 10, 1911. He graduated from Yale University in 1904, where he was a member of St. Anthony Hall, and from the law department of Georgetown University, Washington, D.C. He was a member of President William Howard Taft's party that visited the Philippines, Japan, and China in 1905. He served in the Pennsylvania House of Representatives from 1909 until 1911.
He was elected to 62nd Congress, May 23, 1911, to fill the vacancy caused by the death of Joel Cook and served from May 23, 1911, to March 3, 1913. He declined to be a candidate for renomination in 1912.