Bighead Goby
Ponticola kessleri
- Least concern
- Card rarity: Common
- Fish

Ponticola kessleri, the bighead goby or Kessler's goby, is a species of goby native to Eurasia. The bighead goby is a Ponto-Caspian relict species. It inhabits the fresh and oligohaline waters, with mineralisation from 0–0.5‰ up to 1.5–3.0‰.
Classification
- Class
- Actinopterygii
- Order
- Gobiiformes
- Family
- Gobiidae
- Genus
- Ponticola