Thomas Henry Allis (15 January 1817 – 1 August 1870) was a British entomologist specialising in Lepidoptera.

[1] He amassed a large collection of lepidoptera, which was donation by his father to the Yorkshire Philosophical Society.

[3] The collection was used as the basis of an exhibition at Shandy Hall in 2005 titled 'The Winged Skull and 8000 other moths'.

[4] Allis had also donated specimens, in 1854, to the Entomological Society of London.

[5] A species of moth, Exaeretia allisella, is named after Allis.