Scinax hayii

{{Short description|Species of frog}}

{{Speciesbox

| name =

| image = Scinax hayii.jpg

| status = LC | status_system = IUCN3.1

| taxon = Scinax hayii

| authority = (Barbour, 1909)

| synonyms =

|status_ref={{cite iucn |author=Sergio Potsch de Carvalho-e-Silva, Ana Maria Telles |date=2004 |title=Scinax hayii |volume=2004 |page=e.T55961A11401724 |doi=10.2305/IUCN.UK.2004.RLTS.T55961A11401724.en |access-date=16 November 2021}}

}}

Scinax hayii is a species of frog in the family Hylidae.

It is endemic to Brazil.

Its natural habitats are subtropical or tropical moist lowland forests, subtropical or tropical moist montane forests, rivers, freshwater marshes, intermittent freshwater marshes, pastureland, urban areas, heavily degraded former forest, and ponds.