Submitted names are contributed by users of this website. The accuracy of these name definitions cannot be guaranteed.
OʻAHU(Island)Hawaiian Meaning unknown. Legend says that a Polynesian navigator who discovered the Hawaiian islands named it after his daughter. This is the third largest and most populated island in HAWAII... [more]
OAKLAND(Settlement)English This is name of places in the United States and Canada (including the one in California).... [more]
OBAN(Settlement)Scottish An t-Òban in Scottish Gaelic meaning ''The Little Bay''.
OCCITANIA(Region)English The name of a historical region in southern Europe where Occitan was historically the main language spoken. Not to be confused with OCCITANIE.
OCCITANIE(Region)French, English The name of a southernmost administrative region in France. Not to be confused with OCCITANIA, the historical region which it is named after.
ODENSE(Settlement)Danish From Old Norse ÓÐINN's vé meaning "Odin's sanctuary". This is the 3rd largest city in Denmark and the birthplace of Hans Christian Andersen (1805-1875), the author of fairy tales such as 'The Little Mermaid' (1837), and 'The Snow Queen' (1844).
OENOTRIA(Region)History Latinized form of Greek Οἰνωτρία (Oinotria), the name applied to southern Italy by Greek colonists when they arrived to the region in around the 8th century BC. It is possibly a derivative of Greek οἶνος (oinos) meaning "wine" (perhaps via the related word οἴνωτρον (oinotron), which referred to a kind of vine stake) and may mean "wine land" or "land of vineyards"... [more]
OFFALY(Political Subdivision)Irish County in IRELAND. Named after the Gaelic kingdom of Uí Failghe, which existed from the 6th century until 1556.
OFO(Settlement)Bashkir Bashkir form of UFA, referring only to the city.
OHIO(Political Subdivision)English (American) Name of a state in the United States, originally used of the river, from Seneca ohi:yo "good river".
OKA(Settlement)Mohawk Unknown meaning. Name of town in QUEBEC
OKANAGAN(Region & Body of Water)Salishan Region and lake in CANADA, named after the Okanagan people. Means "the people living where you can see the top", due to the many mountains in the area.
OKHOTSK(Political Subdivision)Russian from an Even word окат (okat) meaning "river"
OKLAHOMA(Political Subdivision)English (American) Name of a state in the United States, from Choctaw okla "people" "tribe" "nation" + homma "red".
OKOBOJI(Body of Water)Santee Dakota Sioux Legend tells the lake was named for Chief Okoboji; meaning either ‘place of rest’ or ‘reeds or rushes,’-preferred.... [more]
OLAHA SHINEHAH(Region)Mormon The name of a plain mentioned in the Doctrine and Covenants, a work of Mormon scripture. In the 1800's, the same section in which it was mentioned was copied into a few journals, though the spellings differed... [more]
OLENYOK(Political Subdivision)Russian "Agents" (or agent-noun, i.e. "Workers" LoL) of "Oil"
OLIBLISH(Other)Mormon In the Book of Abraham, a figure in one of the facsimiles is said to represent Oliblish, one of the grand governing stars next to KOLOB. It is listed among one of the three governing powers, called the Grand Key, along with ENISH-GO-ON-DOSH and KAE-E-VANRASH, which govern all other creations, but are subject to Kolob.
OLISIPO(Settlement)Ancient Roman Ancient name of LISBOA used while the city were a part of the Roman Empire. Probably derived from the name ODYSSEUS.
OLLANDIA(Country & Political Subdivision)Greek Greek form of HOLLAND (1). It is usually used to refer to the whole country of the NETHERLANDS, even though that is technically incorrect... [more]
OMAHA(Settlement)Sioux :Siouan people of northeastern Nebraska, 1804, Maha, perhaps from Omaha umaha, perhaps literally "upstream (people), against the flow." The Nebraska city was founded in 1854.
ØPPLAND(Political Subdivision)Norwegian From the Old Norse upp meaning "up, upper" and lǫnd meaning "lands." The inner regions of Norway were called Upplǫnd in Norse times.... [more]
ORCADIA(Island)Medieval, Ancient Celtic (Latinized) A medieval name for the Orkney Islands, the famous archipelago of the northwest coast of Scotland. It comes from the Roman name Orcades which was probably derived from Celtic *forko- "young pig"... [more]
ÖREBRO(Settlement)Swedish Combination of Swedish ör, an archaic word meaning "gravel", and BRO "bridge. ... [more]
OREGON(Political Subdivision)English (American) Name of a state in the United States, from the name of a large river in the west of North America, possibly from Algonquin wauregan "beautiful".
ORIVAL(Settlement)French Derived from Latin aurea vallis meaning "golden vale/valley," the name belonging to three communes (one since defunct), located in the Seine-Maritime & Somme départements of northern France and Charente département of western France.
ORLANDO(Political Subdivision)English Name of a city in FLORIDA, named in honor of Orlando Reeves who died in 1835 during a supposed attack by Seminoles in the Second Seminole War.
ORTAC(Island)Norman A small Channel Island in ENGLAND. Likely means "large rock at the edge" from the Norman 'or', meaning "edge", and 'etac', meaning "stack", referring to the geological landform.
OSSETIA(Region)English, Finnish, Indonesian, Malay, Norwegian From Russian Осетия (Osetiya), from Georgian ოსეთი (oseti) derived from ოსი (osi) meaning "Ossetian". The name comes from As, the self-designation of the historic Alan people... [more]
ÖSTERSJÖN(Body of Water)Swedish Means "the eastern sea" in Swedish. This is the Swedish name for the BALTIC SEA.
ØSTFOLD(Political Subdivision)Norwegian From the old name of the Olsofjord fold and the Norwegian word øst. The name means, "the region east of the fold."... [more]
OULU(Settlement)Finnish From the name of the Oulu River (Finnish: Oulujoki). Oulu is probably taken directly from the Finnish dialectal word oulu meaning "flood water". Oulu is a city in Northern Finland.
OYMYAKON(Political Subdivision)Russian named after the Oymyakon River, whose name reportedly comes from the Even word kheium, meaning "unfrozen patch of water; place where fish spend the winter" ... or the Even word heyum (hэjум) (kheium being a possible misspelling) means "frozen lake"