Llewellynn Frederick William Jewitt (or Llewellyn) (24 November 1816 – 5 June 1886) was a British illustrator, engraver, natural scientist and author of The Ceramic Art of Great Britain (1878).

His education, largely from his father, who was master at Kimberworth Endowed School, started in Duffield, Derbyshire where his family moved in 1818.

In 1857, Jewitt became secretary of the Derby Town and County Museum and Natural History Society and its premises were opened to the general public on Saturday mornings.

In 1860 Jewitt founded his own heavily illustrated and lavishly produced antiquarian journal The Reliquary, of which he was editor until his death in 1886 when it was continued by others.

[3] He was a Fellow of the Society of Antiquaries, wrote numerous articles on English antiquities and topography, and edited the tourist handbook Black's Guide to Derbyshire (1857) which was reprinted many times.