Charles Roden Buxton (27 November 1875 – 16 December 1942) was an English philanthropist and radical British Liberal Party politician who later joined the Labour Party.
He was born in London, the third son of Sir Thomas Buxton, 3rd Baronet. His elder brother Noel Buxton was a prominent figure in British politics, as was his cousin Sidney Buxton.
He grew up on the family estate in Essex and was educated at Harrow and Trinity College, Cambridge, taking a first in Classics and becoming president of the Cambridge Union. After leaving university he travelled to South Australia, where his father was Governor, as well as other locations in France, the Far East, India and America.
He took up law and was called to the bar in 1902. He gave lectures at Morley College and was principal there from 1902 to 1910. He wrote articles on various subjects and edited the Albany Review from 1906 to 1908.
In 1904 he married Dorothy Frances Jebb. The Jebbs, apart from being a well-off family, also had a strong social conscience and commitment to public service; her mother, Eglantyne Louisa Jebb, had founded the Home Arts and Industries Association, to promote Arts and Crafts among young people in rural areas, her sister Louisa would help found the Women's Land Army in World War I, and Dorothy and her sister Eglantyne Jebb co-founded the international charity and movement Save the Children.