Thomas Stalker Butler (November 4, 1855 – May 26, 1928) was an American politician who served as a U.S. Representative from Pennsylvania from March 4, 1897, until his death, having been elected to the House sixteen times.

He later studied law, was admitted to the bar in 1877, and commenced practice in West Chester.

During World War I, Butler read into the Congressional Record the "bogus oath", which was falsely attributed to the Roman Catholic fraternal organization Knights of Columbus, in which the oath taker pledges to war against Protestant Christians.

[2] Butler died in office and was buried in Oaklands Cemetery, West Chester, Pennsylvania.

His home at West Chester, The Butler House, was listed on the National Register of Historic Places in 1980.