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- (Almora) Orakhān
- (Almora) Olia
- (Bageshwar) Okhalsaun
- (Bageshwar) Odyār
- (Bageshwar) Okhaldhār
- (Pithorāgarh) Olīgaon
- (Bageshwar) Olīgaon
- (Bageshwar) Odyār
- (Bageshwar) Odyura
- (Bageshwar) Okhalisirod
- (Almora) Okāli
- (Udham Singh Nagar) Otarsia
- (Champawat) Odālī
- (Pithorāgarh) Ogla
- (Garhwāl) Odalgaon
- (Uttarkāshi) Osla
- (Dehradun) Ogalwāla
- (Garhwāl) Otind
- (Garhwāl) Odal
- (Naini Tāl) Okhaldhunga
- (Dehradun) Olīgaon
- (Dehradun) Okhaliwāla
- (Chamoli) Oucha
- (Garhwāl) Okhalyūn
- (Uttarkāshi) Odātha
- (Garhwāl) Odila
- (Garhwāl) Odali
- (Garhwāl) Odgaon
- (Garhwāl) Okna
- (Dehradun) Ona