Thomas Sidney "Sid" Bevan (2 May 1877 – 17 October 1933)[3] was a Welsh rugby union player who represented Wales and the British Lions.

Bevan came to note as a rugby player while representing local team Morriston RFC.

His first and only cap was on 2 March 1904 at Balmoral Showgrounds in Belfast against Ireland.

In the same year Bevan was selected to represent Bedell Sivright's British Lions on their tour of Australia and New Zealand.

During World War I, Bevan was a second lieutenant in the 6th battalion of the Welch Regiment.