Stuart Rendel, 1st Baron Rendel, was a British industrialist, philanthropist and Liberal politician. He sat as a Liberal Member of Parliament for Montgomeryshire between 1880 and 1894, and was recognised as the leader of the Welsh MPs. He was a benefactor to the University College of Wales at Aberystwyth and served as its president from 1895 to 1913.

Montgomeryshire is a constituency in Wales represented in the House of Commons of the UK Parliament.