Cantonius
{{short description|Genus of beetles}}
{{Italic title}}
{{Taxobox
| name = Cantonius
| regnum = Animalia
| phylum = Arthropoda
| classis = Insecta
| ordo = Coleoptera
| subordo = Polyphaga
| superfamilia = Buprestoidea
| familia = Buprestidae
| genus = Cantonius
| genus_authority = Thery, 1929
}}
Cantonius is a genus of beetles in the family Buprestidae, containing the following species:{{cite web |url=https://cerambycids.com/Buprestidae/WorldCat/Genera/Cantonius.htm |title=Genus Cantonius |author=Bellamy, C. L. |date=2013|work=A Checklist of World Buprestoidea |accessdate=7 Sep 2021}}
- Cantonius bolmi Kalashian, 2004
- Cantonius fokienicus Kalashian, 2004
- Cantonius jendeki Kalashian, 2004
- Cantonius klapperichi Obenberger, 1940
- Cantonius khnzoriani Kalashian, 2004
- Cantonius megacephalus Kalashian, 2004
- Cantonius nitidifrons Kalashian, 2004
- Cantonius obenbergeri (Gebhardt, 1928)
- Cantonius obesus Obenberger, 1940
- Cantonius szechuanensis Obenberger, 1958
- Cantonius terryi Thery, 1929