Gygis

{{Short description|Species of bird}}

{{Automatic taxobox

| image = Gygis alba Ascension Island 1.jpg

| image_caption =

| taxon = Gygis

| authority = Wagler, 1832

| subdivision_ranks = Species

| subdivision =

• Gygis alba
• Gygis microrhyncha

}}

White terns comprise the two species of terns in the genus Gygis. The best known (and formerly only) species in the genus is the common white tern.{{Cite web|title=Common White Tern (Gygis alba) - BirdLife species factsheet|url=http://datazone.birdlife.org/species/factsheet/common-white-tern-gygis-alba|access-date=2021-05-04|website=datazone.birdlife.org}} The little white tern (Gygis microrhyncha), previously considered a subspecies of the white tern (Gygis alba microrhyncha), is now recognised as a second species of white tern.{{Cite book|last1=del Hoyo|first1=J|title=HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 1: Non-passerines.|last2=Collar|first2=N.J.|last3=Christie|first3=D.A.|last4=Elliott|first4=A.|last5=Fishpool|first5=L.D.C.|publisher=Lynx Edicions BirdLife International|year=2014|location=Barcelona, Spain and Cambridge, UK.}}