Charlotte Mary Brame (usually known as Charlotte M. Brame, last name sometimes mistakenly given as Braeme; appeared under pseudonyms in America, notably Bertha M. Clay, and was sometimes identified by the name of her most famous novel, Dora Thorne) was an English novelist.

Her stories appeared in popular weekly publications such as Bow Bells, the London Reader, and the Family Herald. She was incredibly prolific, writing somewhere in the region of 130 novels during her lifetime. Charlotte Brame's fiction was invariably set in English country houses... Against this milieu, she reworked the theme of love in all of its multifarious aspects—old love, young love, jealousy, suspicion, misalliance, and improvident marriage. High morals such as honour, a sense of duty, and self-sacrifice are lauded as the greatest of virtues. The books also contain strong descriptive passages, some of which are drawn from her associations with Leicestershire... Her literary endeavours, in a male-dominated field, her works of charity, and her personal stamina and resilience, in the face of family tragedy and ill health, represent a triumph in adversity.