Proper Nouns That Start with OS

Browse 12 English proper nouns starting with the prefix OS, including Oscars, Osaka, Oslo, Osun, Oshun, Ostia and Ostrava. Sort these capitalized names for specific people, places, and organizations by letter count for capitalization practice, trivia, and reference writing, or consult our noun grammar guide.

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Starts with OSA
1 words
osaka
Starts with OSC
2 words
oscars
oscillatoriaceae
Starts with OSH
1 words
oshun
Starts with OSL
1 words
oslo
Starts with OSS
1 words
ossifraga
Starts with OST5 words
ostia
ostrava
ostmark
osteoglossiformes
osteoglossum
Starts with OSU
1 words
osun

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