Mary Byfield (baptized 11 November 1795 – 1871) was an English book illustrator and wood engraver.
She and Ann Byfield were "artist engravers on wood" with a business in Florence Street, Islington.
Taught by their father, Mary Byfield often worked with her brothers John (1788-1841) and Ebenezer (1790-1817) to produce engraved illustrations for books.
[4] Mary and John Byfield also produced illustrations for the Chiswick Press, notably for the works of William Pickering.
[4] For most of her life, Byfield lived in the Holloway area of London, notably at Canonbury Place and Liverpool Road.