| North East Valley Baptist Church | — | 270 North Road, Dunedin, 9010 | — | |
| North Harbour Chapel | — | — | — | |
| North Harbour Seventh-Day Adventist Church | — | 40 Bronzewing Terrace, Auckland, 0632 | — | |
| North Porirua Baptist Church | — | 69F Discovery Drive, Wellington, 5024 | — | |
| North Shore Fijian Christian Fellowship | — | 119 Onewa Road, Auckland, 0627 | — | |
| North Shore New Life Church | — | — | — | |
| Northcity Church | — | 95a Sawyers Arms Road, Christchurch, 8052 | — | |
| Northcote Baptist Church | — | 67 Eban Avenue, Auckland, 0627 | — | |
| Northcote Methodist Church / Saint Luke's Methodist Church | — | 14-20 Greenslade Crescent, Auckland, 0627 | — | |
| Northcross Community Church | — | 826A East Coast Road, Auckland, 0630 | — | |
| Northgate Baptist Church | — | 6 Hibiscus Coast Highway, Auckland, 0993 | — | |
| Northgate Community Church | — | 97c Borman Road, Hamilton, 3281 | — | |
| Northpoint Baptist Church | — | 116 Mangati Road, New Plymouth, 4312 | — | |
| Northwest Anglican Church of the Good Shepherd | — | — | — | |
| NZ Good Neighbor Church | — | 172 Hinemoa Street, Auckland, 0626 | — | |
| Oamaru Baptist Church | — | 14 Sandringham Street, Oamaru, 9400 | — | |
| Oamaru Elim Church | — | 6 Severn Street, Oamaru, 9400 | — | |
| Oamaru Seventh-Day Adventist Church | — | 278 Thames Street, Oamaru, 9400 | — | |
| Oasis Church | — | — | — | |
| Oban Presbyterian Church | — | Kamahi Road, Stewart Island, 9818 | — | |
| Ohope Christian Fellowship | — | 71 Maraetotara Road, Ōhope, 3121 | — | |
| Old Boys Memorial Chapel | — | — | — | |
| Old Saint Paul's | — | — | — | |
| Old St Peter's | — | — | — | |
| Old Wesleyan Methodist Church | — | — | — | |
| Olive Prayer Centre | — | 187 Red Hills Road, Auckland, 0614 | — | |
| Omokoroa Community Church | — | 139 Hamurana Road, Ōmokoroa, 3114 | — | |
| Omokoroa Peninsula Baptist Church | — | 334 Omokoroa Road, Ōmokoroa, 3172 | — | |
| Onehunga Bible Fellowship / Onehunga Bible Chapel | — | 1 Inkerman Street, Auckland, 1061 | — | |
| Onehunga Co-operating Parish / Grey Street Cooperating Church | — | 317 Onehunga Mall, Auckland, 1061 | — | |
| Onslow Community Church | — | 4 Ngatoto Street, Wellington, 6035 | — | |
| Onuku Church | — | — | — | |
| Opawa Baptist Church | — | 285 Wilsons Road, Christchurch, 8023 | — | |
| Opawa Community Church | — | 158 Opawa Road, Christchurch, 8023 | — | |
| Open Christian Fellowship | — | 46 Kiddle Drive, Taupo, 3330 | — | |
| Opoho Presbyterian Church | — | 50 Signal Hill Road, Dunedin, 9010 | — | |
| Opotiki Baptist Church | — | 71 Church Street, Ōpōtiki, 3122 | — | |
| Orakei Baptist Church | — | 96 Kupe Street, Auckland, 1071 | — | |
| Orakei Presbyterian Church | — | — | — | |
| Oratia Combined Church | — | 1-5 Parker Road, Auckland, 0604 | — | |
| Oratory of Our Mother of Perpetual Succour | — | — | — | |
| Orewa Community Church | — | 235 Hibiscus Coast Highway, Whangaparāoa, 0932 | — | |
| Ormiston Community Baptist Church | — | 275 Ormiston Road, Auckland, 2016 | — | |
| Ormond Chapel | — | 55 Chaucer Road South, Hospital Hill | — | |
| Orthodox Church of Christ the Saviour | — | 9 Tikorangi Road, Portland, 0178 | — | |
| Otahuhu Community Baptist Church | — | 45 Mason Avenue, Auckland, 1062 | — | |
| Otahuhu Methodist Church | — | 498 Great South Road, Auckland, 1062 | — | |
| Otahuhu Tongan Assembly of God | — | 77 Station Road, Auckland, 2025 | — | |
| Otaki Presbyterian Church | — | 249 Mills Road, Wellington, 5512 | — | |
| Otakou Maori Memorial Methodist Church | — | — | — | |