Dusky sergeant

{{Short description|Species of fish}}

{{Speciesbox

| image = Abudefduf concolor.jpg

| status = LC

| status_system = IUCN3.1

| status_ref = {{Cite iucn| author = Allen, G. | author2 = Robertson, R. | author3 = Rivera, R. | author4 = Edgar, G. | author5 = Merlen, G. | author6 = Zapata, F. | author7 = Barraza, E. | name-list-style = amp | title = Abudefduf concolor | year= 2010 | page = e.T183483A8121204 | doi = 10.2305/IUCN.UK.2010-3.RLTS.T183483A8121204.en | access-date = 14 January 2018}}

| taxon = Abudefduf concolor

| authority = (Gill, 1862)

| synonyms = *Euschistodus concolor Gill, 1862

• Nexilarius concolor (Gill, 1862)
• Pomacentrus robustus Günther, 1862

| synonyms_ref = {{FishBase|Abudeduf|concolor|month=June|year=2018}}

}}

The dusky sergeant (Abudefduf concolor),{{Cite WoRMS|title=Abudefduf concolor (Gill, 1862) |id=273696 |access-date=2022-11-29 |author=Bailly, Nicolas |year=2008}} also known as the night sergeant, is a species of damselfish in the family Pomacentridae endemic to the eastern Pacific Ocean. The species can reach {{cvt|19|cm}} in total length.