Holly Creek Formation

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| name = Holly Creek Formation

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| type = Formation

| age = Cretaceous

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| namedfor = Little Holly Creek and Holly Creek, Howard County, Arkansas

| namedby = Harold C. Vanderpool{{cite journal|last1=Vanderpool|first1=H.C.|title=A preliminary study of the Trinity group in southwestern Arkansas, southeastern Oklahoma, and northern Texas|journal=Bulletin of the American Association of Petroleum Geologists|date=1928|volume=12|pages=1079–1080}}

| region = Arkansas

| country = United States

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The Holly Creek Formation is a geologic formation in Arkansas. It preserves fossils dating back to the Cretaceous period which belong to the Trinity Group.{{Cite journal|last1=Suarez|first1=Celina A.|last2=Frederickson|first2=Joseph|last3=Cifelli|first3=Richard L.|last4=Pittman|first4=Jeffrey G.|last5=Nydam|first5=Randall L.|last6=Hunt-Foster|first6=ReBecca K.|last7=Morgan|first7=Kirsty|date=2021-10-21|title=A new vertebrate fauna from the Lower Cretaceous Holly Creek Formation of the Trinity Group, southwest Arkansas, USA|journal=PeerJ|volume=9|pages=e12242|doi=10.7717/peerj.12242|pmid=34721970 |pmc=8542373 |issn=2167-8359 |doi-access=free }}