Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Sulphur Cone | Summit | 3444 | Hawaii | 19 23 27 N | 155 38 19 W |
| Summit Hill | Summit | 19 | Honolulu | 23 34 33 N | 164 42 11 W |
| Summit Patrol Cabin | Locale | 3980 | Hawaii | 19 28 10 N | 155 35 06 W |
| Summit Trail | Trail | 824 | Honolulu | 21 33 53 N | 157 55 48 W |
| Sun Yat Sen School | School | 3 | Honolulu | 21 19 06 N | 157 51 47 W |
| Sunset Beach | Beach | 3 | Honolulu | 21 39 59 N | 158 03 19 W |
| Sunset Beach | Populated Place | 5 | Honolulu | 21 40 23 N | 158 02 53 W |
| Sunset Beach Christian School | School | 9 | Honolulu | 21 39 31 N | 158 03 40 W |
| Sunset Beach Church of Christ | Church | 0 | Honolulu | 21 39 31 N | 158 03 42 W |
| Sunset Beach Elementary School | School | 0 | Honolulu | 21 40 01 N | 158 03 07 W |
| Sunset Beach Fire Station | Building | 0 | Honolulu | 21 39 07 N | 158 03 56 W |
| Sunset Beach Neighborhood Park | Park | 2 | Honolulu | 21 40 01 N | 158 03 13 W |
| Sunset Beach Support Park | Park | 4 | Honolulu | 21 40 40 N | 158 02 35 W |
| Sunset Point | Cape | -2 | Honolulu | 21 41 02 N | 158 02 26 W |
| Sunset Point Beach Park | Park | 0 | Honolulu | 21 40 57 N | 158 02 23 W |
| Susana Westley Community Center | Building | 15 | Honolulu | 21 20 08 N | 157 52 44 W |
| Swanzy Beach Park | Park | 9 | Honolulu | 21 33 35 N | 157 51 20 W |
| T Roosevelt High School | School | 45 | Honolulu | 21 18 49 N | 157 50 26 W |
| Tachikawa School | School | 3 | Honolulu | 21 18 02 N | 157 50 53 W |
| Taishoji Soto Mission | Church | 15 | Hawaii | 19 43 33 N | 155 05 26 W |
| Tanager Peak | Summit | -3 | Honolulu | 23 03 38 N | 161 55 01 W |
| Tank Ahupu Gulch | Valley | | Maui | 20 34 28 N | 156 38 05 W |
| Tantalus | Summit | 410 | Honolulu | 21 20 09 N | 157 49 05 W |
| Temple Emanu-el | Church | 78 | Honolulu | 21 19 59 N | 157 50 52 W |
| Temple Valley Shopping Center | Locale | 52 | Honolulu | 21 26 23 N | 157 49 46 W |
| Tenney Center | Building | 19 | Honolulu | 21 20 41 N | 158 02 38 W |
| Tenney Village | Populated Place | 18 | Honolulu | 21 20 33 N | 158 02 41 W |
| Tenrikyo Hawaii Dendocho | Church | 105 | Honolulu | 21 20 22 N | 157 50 33 W |
| Tenrikyo Honoluluko | Church | 42 | Honolulu | 21 19 40 N | 157 51 19 W |
| Tenrikyo Kaimana Kyokai | Church | 43 | Honolulu | 21 16 56 N | 157 48 17 W |
| Tenrikyo Kilauea Church | Church | 9 | Hawaii | 19 42 35 N | 155 04 23 W |
| Tenrikyo Maui Kyokai Church | Church | 25 | Maui | 20 52 32 N | 156 28 54 W |
| Tenscho Kotai Jingu Kyo Hawaii | Church | 3 | Honolulu | 21 19 33 N | 157 52 13 W |
| Tensho Kotai Jingu Kyo | Church | 65 | Kauai | 21 58 34 N | 159 22 11 W |
| Tentoku Yodo Mission of Hawaii | Church | 39 | Honolulu | 21 22 50 N | 157 55 28 W |
| The Arch | Arch | 2 | Maui | 20 34 28 N | 156 38 19 W |
| The Contemporary Museum | Building | 104 | Honolulu | 21 18 55 N | 157 50 09 W |
| The Day of Salvation Church | Church | 17 | Honolulu | 21 20 12 N | 157 52 37 W |
| The Early School | School | 5 | Honolulu | 21 17 50 N | 157 49 29 W |
| The Needle | Summit | 581 | Maui | 20 53 15 N | 156 33 16 W |
| The Point | Cape | 10 | Honolulu | 21 17 22 N | 157 40 19 W |
| The Queens Medical Center Heliport | Airport | 17 | Honolulu | 21 18 33 N | 157 51 10 W |
| The Stone Leaning Post | Locale | 3 | Hawaii | 20 01 47 N | 155 49 33 W |
| Thomas Hale Hamilton Library | Building | 40 | Honolulu | 21 18 14 N | 157 49 08 W |
| Thompson Corner | Populated Place | 1 | Honolulu | 21 33 55 N | 158 06 57 W |
| Three Tables | Beach | 0 | Honolulu | 21 38 55 N | 158 04 00 W |
| Thurston Lava Tube | Lava | 1185 | Hawaii | 19 25 01 N | 155 14 27 W |
| Thurston Memorial Chapel | Church | 33 | Honolulu | 21 18 22 N | 157 49 52 W |
| Tidal Wave Memorial | Park | 3 | Hawaii | 19 59 43 N | 155 14 35 W |
| Todaiji Buddhist Temple | Church | 96 | Honolulu | 21 20 09 N | 157 50 52 W |
| Toilet Bowl | Bay | 32 | Honolulu | 21 16 22 N | 157 41 36 W |
| Tong Sing Tong Chinese Cemetery | Cemetery | 32 | Honolulu | 21 19 13 N | 157 50 50 W |
| Totoki Building | Building | 4 | Honolulu | 21 18 22 N | 157 51 24 W |
| Town Park | Park | 6 | Kauai | 22 04 48 N | 159 19 09 W |
| Tracks Beach Park | Park | 0 | Honolulu | 21 21 48 N | 158 08 05 W |
| Tredtin Hall | Building | 15 | Honolulu | 21 17 35 N | 157 48 41 W |
| Trinity Community Church | Church | 49 | Hawaii | 19 41 22 N | 155 04 09 W |
| Trinity Lutheran Church | Church | 309 | Honolulu | 21 30 18 N | 158 00 48 W |
| Trinity Lutheran School | School | 309 | Honolulu | 21 30 18 N | 158 00 48 W |
| Tripler Army Medical Center | Hospital | 95 | Honolulu | 21 21 47 N | 157 53 34 W |
| Tripod Reef | Bar | 0 | Honolulu | 21 18 41 N | 157 59 30 W |
| True Jesus Mission Church | Church | 9 | Honolulu | 21 18 04 N | 157 50 17 W |
| Tunnel Number One | Tunnel | 27 | Honolulu | 21 16 13 N | 157 48 26 W |
| Tunnels Beach | Beach | 4 | Kauai | 22 13 37 N | 159 33 49 W |
| Turtle Bay | Bay | 0 | Honolulu | 21 42 17 N | 158 00 18 W |
| Turtle Bay Hilton Helipad | Airport | 0 | Hawaii | 21 42 17 N | 158 00 20 W |
| Twelvemile School (historical) | School | 220 | Hawaii | 19 35 15 N | 155 03 39 W |
| Twentymile Station (historical) | Locale | 79 | Hawaii | 19 32 17 N | 154 54 05 W |
| Twentyone Mile Station (historical) | Locale | 91 | Hawaii | 19 31 44 N | 154 53 48 W |
| Twentytwo Mile Station (historical) | Locale | 65 | Hawaii | 19 31 37 N | 154 52 42 W |
| Twin Craters | Crater | 1180 | Hawaii | 19 25 02 N | 155 14 30 W |
| Twin Pit Craters | Crater | 955 | Hawaii | 19 21 29 N | 155 18 58 W |
| Twin Reservoirs | Reservoir | 87 | Kauai | 22 05 08 N | 159 21 09 W |
| Twin Rocks | Island | 3 | Maui | 20 45 43 N | 155 58 48 W |
| 'Ualapu'e | Civil | 571 | Maui | 21 05 20 N | 156 50 30 W |
| 'Ualapu'e | Populated Place | 69 | Maui | 21 03 57 N | 156 49 57 W |
| 'Ualapu'e Fishpond | Reservoir | 24 | Maui | 21 03 44 N | 156 50 03 W |
| Uaoa Bay | Bay | 0 | Maui | 20 56 20 N | 156 16 24 W |
| Uaoa Stream | Stream | | Maui | 20 56 15 N | 156 16 27 W |
| Uapa | Summit | 1300 | Maui | 21 06 40 N | 156 52 35 W |
| Uewale Gulch | Valley | | Hawaii | 19 18 46 N | 155 27 34 W |
| Uhau'iole Falls | Falls | 309 | Kauai | 22 05 22 N | 159 26 19 W |
| Uhau'iole Stream | Stream | | Kauai | 22 04 12 N | 159 24 58 W |
| 'Uko'a Pond | Lake | 1 | Honolulu | 21 36 27 N | 158 06 00 W |
| 'Ukulele Camp | Locale | 1511 | Maui | 20 47 42 N | 156 15 21 W |
| Ukumehame | Civil | 725 | Maui | 20 48 47 N | 156 33 31 W |
| Ukumehame Beach State Park | Park | 1 | Maui | 20 47 52 N | 156 35 02 W |
| Ukumehame Bridge | Bridge | 3 | Maui | 20 48 12 N | 156 35 42 W |
| Ukumehame Gulch | Valley | | Maui | 20 48 30 N | 156 35 35 W |
| Ukumehame Reservoirs | Reservoir | 171 | Maui | 20 48 50 N | 156 35 25 W |
| Ukumehame Shaft | Well | 79 | Maui | 20 48 47 N | 156 35 57 W |
| 'Ula'ino | Civil | 292 | Maui | 20 47 41 N | 156 04 09 W |
| 'Ula'ino (historical) | Populated Place | 53 | Maui | 20 48 31 N | 156 03 32 W |
| Ula'ula | Beach | 3 | Honolulu | 21 18 30 N | 158 01 57 W |
| Ulalena | Summit | 551 | Maui | 20 52 11 N | 156 15 16 W |
| Ulaula | Summit | 641 | Maui | 20 50 12 N | 156 35 29 W |
| Ulehawa Beach Park | Park | 6 | Honolulu | 21 23 54 N | 158 09 51 W |
| Ulehawa Stream | Stream | | Honolulu | 21 23 42 N | 158 09 38 W |
| Ulekuwale | Cape | 43 | Hawaii | 19 09 38 N | 155 26 45 W |
| Ulimakoli | Summit | 177 | Honolulu | 21 27 25 N | 157 51 58 W |
| Ulu Ko | Populated Place | 66 | Kauai | 21 57 58 N | 159 22 18 W |
| Ulu Mahi | Populated Place | 68 | Kauai | 21 58 11 N | 159 22 25 W |
| Ulu Po Heiau State Historical Site | Park | 1 | Honolulu | 21 23 21 N | 157 45 20 W |
| 'Ulu'ini Stream | Stream | | Maui | 20 50 55 N | 156 10 46 W |
| Ulua Beach | Beach | -3 | Maui | 20 41 35 N | 156 26 48 W |
| Uluawaa | Summit | 674 | Kauai | 22 07 14 N | 159 25 20 W |
| Uluhi | Summit | 245 | Kauai | 21 59 00 N | 159 28 26 W |
| Uluhulu Gulch | Valley | | Honolulu | 21 34 39 N | 158 13 50 W |
| Ulukoa | Area | 1 | Honolulu | 21 16 35 N | 157 49 32 W |
| Ululani Reservoir | Reservoir | 835 | Hawaii | 20 03 06 N | 155 35 31 W |