Sarah Newcomb Merrick (née , Newcomb; May 9, 1844 – February 3, 1922) was a Canadian-born American teacher and writer. She was the author of A Unique Method for Preserving the Inscriptions in our Historic Burial Grounds and Present-day Beliefs in Some Medical Superstitions. She was also a business woman and inventor before she became a physician later in life. Merrick died in 1922.