Frederick John Sidney Parry (28 October 1810 – 1 February 1885, was an English entomologist who specialised in Coleoptera, principally Lucanidae.
Frederick Parry was educated at Harrow School 1823-1826 He attended the Cadetenhausen Dresden from 1827-1828 and was a Lieutenant in the 17th Lancers 1831 - 1835.
Many of Parry's specimens ('at one time he had a general collection of Coleoptera, but latterly it was limited to Lucanidae and Cetoniidae, the former being very valuable, and probably the most complete in existence') were purchased by René Oberthür and other dealers and collectors.
They are now conserved in the Natural History Museum (Cerambycidae, Elateridae, Heteromera, Anthribidae, Lucanidae, Cetoniinae and Cleridae).
Duplicate specimens from these families and all the Paussidae are in Muséum national d'histoire naturelle in Paris.