William Gabriel Blatch FRES (c. 1840-25 February 1900) was a British entomologist and superintendent.
[1] Blatch was an early member of the Birmingham Natural History and Philosophical Society and served as its secretary from 1871 to 1873.
He subsequently co-founded the Birmingham Entomological Society and served as its president from 1889-1893.
[2] At least some of Blatch's collection ended up in the possession of his friend and fellow entomologist Herbert Willoughby Ellis.
[2][4] He described the species Neuraphes planifrons and Rhizophagus oblongocollis whose type specimens are now in Manchester Museum.