Henrietta Watson (11 March 1873 – 29 September 1964) was a Scottish actress. She was born in Dundee, Scotland, on 11 March 1873, into a theatrical family. Her maternal grandfather was actor J.B. Johnston, whom Edmund Yates considered to be “the most sterling actor on the English stage.” After the death of her father she went onto the stage, as did most of her four brothers and two sisters.