Hwiccewyrm (meaning "Hwicce dragon") is an extinct genus of leptopleuronine procolophonid parareptile from the Late Triassic Magnesian Conglomerate of England.

[1] The holotype, specimen UMZC 2023.4.1, which is a partial skull, was discovered during the 1970s by Jeanne Evans and was likely found at Slickstones Quarry, Cromhall in an outcrop of the Magnesian Conglomerate.

More specimens from the same species were later found at Slickstones Quarry, and were first described by Fraser (1988a) as belonging to an indeterminate procolophonid.

Hypsognathus by Whiteside et al. (2016),[6] and Butler et al. (2023) identified that the specimens belonged to a separate genus, naming it Hwiccewyrm trispiculum.

[1] Hwiccewyrm was found to be the sister-taxon to Hypsognathus, Soturnia and Leptopleuron.