Henry Thomas Ryall (August 1811 – 14 September 1867) was an English line, stipple and mixed-method engraver and later used mixed mezzotint.
Ryall was appointed the royal engraver by Queen Victoria. Forty of his works are in the National Portrait Gallery in London. He was born at Frome, Somerset, in August 1811. He was a pupil of Samuel William Reynolds, the mezzotinto engraver, but the style in which he at first worked was that known as ‘chalk’ or ‘stipple.’ He began his career by engraving plates for the editions of Edmund Lodge's Portraits of Illustrious Personages of Great Britain, and for the series of Portraits of Eminent Conservatives and Statesmen, as well as for Charles Heath's Book of Beauty and other works.

