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- (Boone County) Old Horner Place
- (Choctaw County) Old Isaacs Place
- (Baxter County) Old Longbotbam Place
- (Franklin County) Old Moses
- (Arkansas County) Old Town
- (Boone County) Otis
- (Ashley County) Old Waterman Place
- (Baxter County) Olive
- (Conecuh County) Orogrande
- (Elmore County) Oasis
- (Campbell County) Organ
- (Dale County) Ojo Amarillo
- (Covington County) Ohkay Owingeh