Archaeology
HistoryModernAncient historyArchaeologyContemporaryPost-classicalIndian historyEarly modernAncientHistory by country, small region and cityFrom Lably lessonsHistory by topicHistorical cities, towns and archaeological sitesBasicsPrehistoryHistory by countryHistorical citiesModern historyHistory by subject matterPost-classical historyHistory by continent and large regionAuxiliary historical sciencesHistory & CivicsHistory by subjectHistory by continent and regionHistory by ethnicityHistory by regionGeneral
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- O. G. S. CrawfordBritish archaeologist (1886–1957)
- Obelisk of Axum4th-century phonolite stele in Axum, Tigray Region, Ethiopia
- OcuteNative American paramount chiefdom
- Ōdai Yamamoto I SiteArchaeological site in Sotogahama, Japan
- OdderOdder is a town in Jutland, Denmark. The town is the seat of Odder municipality, and is th
- Ofer Bar-YosefIsraeli archaeologist and anthropologist (1937–2020)
- OghamEarly Medieval Irish alphabet
- Ohio History ConnectionOhio History Connection, formerly The Ohio State Archaeological and Historical Society and
- Ōhora Shell MoundShell midden, settlement in Iwate, Japan
- Oinochoe by the Shuvalov PainterAncient Greek vase art
- Okolište (Neolithic site)Largest neolithic Butmir culture site
- Old Babylonian Empire2nd millennium BCE empire in Babylonia
- Old BantenSettlement, Port city in Banten, West Java
- Old Europe (archaeology)Term for a hypothetical homogeneous pre-Indo-European culture
- Old ScatnessArchaeological site in Shetland, Scotland
- OldowanArchaeological culture
- Ōmori Shell MoundsShell midden, settlement in Saitama, Japan
- Oracle boneShells and bones used for divination in ancient China
- Orchomenus (Boeotia)Town in Central Greece
- Origin of the AlbaniansEarly history of the Albanians
- Ormside bowlAnglo-Saxon bowl found in a burial in Ormside, Cumbria
- Orpheus mosaicOrpheus mosaics are found throughout the Roman Empire, normally in large Roman villas. The
- OrroliOrroli, meaning "downy oak" (Arrólli in Sardinian language) is, a comune (municipality) in
- Ortoiroid peopleSecond wave of human settlers of the Caribbean
- Oseberg ShipThe Oseberg ship (Norwegian: Osebergskipet) is a well-preserved Viking ship discovered in
- Ossetian mythologyOssetian mythology or Alan mythology (Iron Ossetic: Ирон мифологи, Дигорон митологи, roman
- OsteologyScientific study of bones
- Ōtsukayama KofunHistoric site in Japan
- ÖtziNatural mummy of a Chalcolithic man from Europe
- Oxhide ingotMediterranean Late Bronze Age metal slabs
- Ōyu Stone CirclesArchaeological site in Kazuno, Akita, Japan
- Ozieri cultureThe Ozieri culture (or San Michele culture) was a prehistoric pre-Nuragic culture that occ