B. Beaumont (née , Bentley; 9 August 1828 – 6 September 1892) was a 19th-century British author, merchant, cotton factor and hotel owner. After immigrating to the U.S., she became a successful merchant of Woodville, Mississippi. Beaumont was the author of the autobiography, Twelve Years of My Life, and A Business Woman's Journal, which documented part of her career. She returned to England before her death there in 1892.