Caucasian goby

{{Short description|Species of fish}}

{{Speciesbox

| status = LC

| status_system = IUCN3.1

| status_ref = {{cite journal | author1 = Freyhof, J. | author2 = Kottelat, M. | name-list-style = amp | year=2008 | title = Ponticola constructor | journal = The IUCN Red List of Threatened Species | volume = 2008 | page = e.T187867A8637324 | doi = 10.2305/IUCN.UK.2008.RLTS.T187867A8637324.en | doi-access = free }}

| taxon = Ponticola constructor

| authority = (Nordmann, 1840)

| synonyms =

• Gobius constructor Nordmann, 1840
• Gobius cephalarges constructor Nordmann, 1840
• Neogobius cephalarges constructor (Nordmann, 1840)
• Neogobius constructor (Nordmann, 1840)Nordmann, A. von. 1840. Observations sur la fauna pontique. In: A. de Démidoff. Voyage dans la Russie méridionale et la Crimée. Vol. III: 353-635. Paris.

}}

The Caucasian goby (Ponticola constructor) is a species of goby native to rivers of the Caucasus draining to the Black Sea in Europe and Asia. This species is strictly a fresh water species and will not enter brackish water. It can reach a length of {{convert|20|cm|in}} SL.{{FishBase |genus= Ponticola|species= constructor| month = June | year = 2013}}