O
- (Ashigarashimo-gun) Okuyumoto
- (Ashigarakami-gun) Okano
- (Ashigarakami-gun) Ozaki
- (Odawara-shi) Ogikubo
- (Odawara-shi) Oniyanagi
- (Odawara-shi) Oka
- (Odawara-shi) Obune
- (Odawara-shi) Odake
- (Odawara-shi) Oshikiri
- (Hadano-shi) Ochiai
- (Hadano-shi) Ojiri
- (Hadano-shi) Obara
- (Isehara Shi) Okazaki
- (Hiratsuka Shi) Oiwake
- (Hiratsuka Shi) Oimatsuchō
- (Chigasaki Shi) Oyashiki
Ō
- (Ashigarashimo-gun) Ōhiradai
- (Ashigarashimo-gun) Ōshiba
- (Ashigarakami-gun) Ōtera
- (Ashigarashimo-gun) Ōhara
- (Odawara-shi) Ōgichō
- (Hadano-shi) Ōkura
- (Hadano-shi) Ōgisawa
- (Hadano-shi) Ōkubo
- (Naka-gun) Ōfukuji
- (Hiratsuka Shi) Ōkubo
- (Hiratsuka Shi) Ōmisumi
- (Hiratsuka Shi) Ōshima
- (Hiratsuka Shi) Ōnishi
- (Hiratsuka Shi) Ōkami