Bubalus palaeokerabau
{{Short description|Extinct species of bovid}}
{{Speciesbox
| fossil_range = Late Pleistocene
| image = Bubalus paleokerabau.jpg
| image_caption = Partial skull fossil at Naturalis
| extinct = yes
| genus = Bubalus
| species = palaeokerabau
| authority = (Dubois, 1908){{cite web |title=Bubalus palaeokerabau |url=https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=162371 |website=Fossilworks}}
}}
Bubalus palaeokerabau is an extinct species of water buffalo that was endemic to Java during the Late Pleistocene.
B. palaeokerabau can be distinguished from more recent domestic water buffalo introduced to Java by their larger size and their extremely long horns, which can be around {{convert|2.5|m|ft|abbr=on}} long from tip to tip.{{cite journal |last1=Hooijer |first1=D.A. |title=Fossil Bovidae from the Malay archipelago and the Punjab |journal=Zoologische Verhandelingen van de Museum Leiden |date=1958 |volume=38 |pages=1–112}}{{cite book |last1=Albers |first1=P. |last2=de Vos |first2=J. |title=Through Eugène Dubois' Eyes: Stills of a Turbulent Life |date=2010 |publisher=Brill |isbn=9789004183001 |page=54}}