The Bonham-Carter family is a British family that has included several prominent people active in various spheres in the United Kingdom.

William Smith was a leading independent British politician, sitting as Member of Parliament (MP) for more than one constituency. He was an English Dissenter and was instrumental in bringing political rights to that religious minority. He was a friend and close associate of William Wilberforce and a member of the Clapham Sect of social reformers, and was in the forefront of many of their campaigns for social justice, prison reform and philanthropic endeavour, most notably the abolition of slavery. He was the grandfather of pioneer nurse and statistician Florence Nightingale and educationalist Barbara Bodichon, a founder of Girton College, Cambridge.