Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Montessori Childrens House | School | 24 | Providence | 41 50 07 N | 071 23 11 W |
| Montop (historical) | Populated Place | 57 | Bristol | 41 40 25 N | 071 14 23 W |
| Moonshine Swamp | Swamp | 34 | Washington | 41 31 20 N | 071 40 58 W |
| Moonstone Beach | Locale | -3 | Washington | 41 22 11 N | 071 34 22 W |
| Mooresfield | Populated Place | 18 | Washington | 41 29 26 N | 071 29 16 W |
| Moosehorn Corner | Populated Place | 104 | Kent | 41 39 12 N | 071 32 33 W |
| Mooseup Valley Historic District | Park | 133 | Providence | 41 44 10 N | 071 45 11 W |
| Moosup Valley | Populated Place | 148 | Providence | 41 44 13 N | 071 45 38 W |
| Moran Swamp | Swamp | 238 | Providence | 41 49 59 N | 071 46 29 W |
| Morriss Building | Building | 40 | Providence | 41 49 47 N | 071 24 05 W |
| Morton Park | Park | 12 | Newport | 41 28 18 N | 071 18 43 W |
| Moscow | Populated Place | 62 | Washington | 41 31 22 N | 071 44 29 W |
| Moscow Brook | Stream | | Washington | 41 31 27 N | 071 43 49 W |
| Moses Brown Farm (historical) | Locale | 20 | Providence | 41 50 02 N | 071 23 25 W |
| Moses Brown Prepatory School | School | 20 | Providence | 41 50 02 N | 071 23 25 W |
| Moshassuck | Cape | 50 | Providence | 41 50 16 N | 071 23 49 W |
| Moshassuck Cemetery | Cemetery | 32 | Providence | 41 53 26 N | 071 24 18 W |
| Moshassuck River | Stream | | Providence | 41 49 35 N | 071 24 43 W |
| Moshassuck Square Historic District | Park | 12 | Providence | 41 50 03 N | 071 24 46 W |
| Mosquitohawk Brook | Stream | | Providence | 41 53 25 N | 071 39 13 W |
| Moswansicut Pond | Lake | 93 | Providence | 41 50 37 N | 071 34 35 W |
| Moswansicut Pond Dam | Dam | 93 | Providence | 41 50 37 N | 071 34 35 W |
| Motts Pond | Lake | 21 | Washington | 41 10 21 N | 071 34 42 W |
| Mount Calvary Church | Church | 21 | Providence | 41 48 15 N | 071 24 47 W |
| Mount Hope | Summit | 64 | Bristol | 41 40 26 N | 071 14 24 W |
| Mount Hope Bridge | Bridge | 1 | Bristol | 41 38 22 N | 071 15 27 W |
| Mount Hope Farm (historical) | Locale | 12 | Bristol | 41 40 43 N | 071 14 13 W |
| Mount Hope High School | School | 20 | Bristol | 41 41 17 N | 071 16 11 W |
| Mount Hope Maritime Terminal | Building | 21 | Newport | 41 37 15 N | 071 16 13 W |
| Mount Hope Point | Cape | 5 | Bristol | 41 39 59 N | 071 14 20 W |
| Mount Hygeia | Summit | 224 | Providence | 41 51 07 N | 071 45 38 W |
| Mount Misery | Summit | 154 | Providence | 41 44 45 N | 071 38 13 W |
| Mount Moriah | Summit | 77 | Washington | 41 24 28 N | 071 49 04 W |
| Mount Pleasant | Summit | 46 | Providence | 41 49 38 N | 071 26 54 W |
| Mount Pleasant | Summit | 36 | Washington | 41 20 20 N | 071 49 03 W |
| Mount Pleasant | Summit | 97 | Washington | 41 30 21 N | 071 33 05 W |
| Mount Pleasant Baptist Church | Church | 26 | Providence | 41 49 56 N | 071 26 17 W |
| Mount Pleasant Branch Providence Public Library | Building | 25 | Providence | 41 49 59 N | 071 26 36 W |
| Mount Pleasant High School | School | 37 | Providence | 41 50 22 N | 071 27 09 W |
| Mount Saint Charles School | School | 111 | Providence | 41 59 45 N | 071 30 08 W |
| Mount Saint Marys Cemetery | Cemetery | 20 | Providence | 41 51 22 N | 071 21 58 W |
| Mount Saint Rita Convent | Church | 108 | Providence | 42 00 43 N | 071 24 38 W |
| Mount Tom | Summit | 131 | Washington | 41 34 49 N | 071 44 23 W |
| Mount Tom Club Wildlife Marsh | Reservoir | 67 | Washington | 41 33 30 N | 071 44 04 W |
| Mount Tom Club Wildlife Marsh Dam | Dam | 67 | Washington | 41 33 30 N | 071 44 04 W |
| Mount Tom Rock | Pillar | 1 | Newport | 41 37 58 N | 071 18 51 W |
| Mount Vernon Camp | Locale | 192 | Providence | 41 43 58 N | 071 43 09 W |
| Mount Vernon Church | Church | 184 | Providence | 41 43 39 N | 071 43 03 W |
| Mount View | Populated Place | 12 | Washington | 41 38 08 N | 071 24 38 W |
| Mount Zion African Methodist Episcopal Church | Church | 10 | Newport | 41 29 45 N | 071 22 31 W |
| Mountaindale | Locale | 75 | Providence | 41 53 05 N | 071 32 08 W |
| Mountaindale Beach | Beach | 80 | Providence | 41 53 01 N | 071 32 08 W |
| Mountaindale Reservoir | Reservoir | 73 | Providence | 41 53 06 N | 071 32 10 W |
| Mountaindale Reservoir Dam | Dam | 73 | Providence | 41 53 06 N | 071 32 10 W |
| Mouwneit Hill | Summit | 62 | Washington | 41 10 18 N | 071 35 39 W |
| Mower Pond Dam | Dam | 131 | Providence | 41 54 12 N | 071 40 34 W |
| Mowry Brook | Stream | | Providence | 41 58 02 N | 071 41 56 W |
| Mowry Meadow | Swamp | 184 | Providence | 41 52 08 N | 071 47 06 W |
| Mowry Paine Brook | Stream | | Providence | 41 55 55 N | 071 36 47 W |
| Mowry-Knight-Mott Lot | Cemetery | 15 | Kent | 41 41 54 N | 071 27 01 W |
| Mowrys Corners | Locale | 82 | Providence | 41 52 13 N | 071 31 50 W |
| Mud Bottom Brook | Stream | | Kent | 41 38 37 N | 071 35 54 W |
| Mud Brook | Stream | | Washington | 41 30 19 N | 071 33 57 W |
| Mud Cove | Bay | 3 | Washington | 41 21 37 N | 071 41 08 W |
| Muddy Bridge Dock (historical) | Locale | 2 | Providence | 41 49 05 N | 071 24 18 W |
| Mumford School | School | 7 | Newport | 41 29 34 N | 071 18 50 W |
| Munyan Trail | Trail | 214 | Providence | 41 57 12 N | 071 46 43 W |
| Murphy Field | Park | 11 | Newport | 41 28 05 N | 071 19 00 W |
| Murre Lot | Cemetery | 46 | Washington | 41 28 59 N | 071 45 27 W |
| Museum of Art Rhode Island School of Design | Building | 19 | Providence | 41 49 34 N | 071 24 24 W |
| Museum of Natural History and Planetarium | Building | 18 | Providence | 41 46 57 N | 071 24 28 W |
| Museum of Natural History Library | Building | 18 | Providence | 41 46 57 N | 071 24 28 W |
| Museum of Newport History | Building | 0 | Newport | 41 29 35 N | 071 19 19 W |
| Museum of Rhode Island History | Building | 0 | Providence | 41 48 59 N | 071 23 43 W |
| Museum of Work and Culture | Building | 55 | Providence | 41 59 55 N | 071 31 07 W |
| Mussachuck Creek | Stream | | Bristol | 41 43 49 N | 071 20 29 W |
| Musselbed Shoals | Bar | 1 | Newport | 41 38 07 N | 071 15 30 W |
| Mussey Brook | Stream | | Providence | 41 57 27 N | 071 27 43 W |
| Myron J Francis Elementary School | School | 19 | Providence | 41 50 27 N | 071 21 39 W |
| Nag Creek | Populated Place | 1 | Newport | 41 38 57 N | 071 19 44 W |
| Nag Pond | Lake | 9 | Newport | 41 37 41 N | 071 19 11 W |
| Nannaquaket Hill | Summit | 53 | Newport | 41 36 40 N | 071 09 58 W |
| Nannaquaket Neck | Cape | 18 | Newport | 41 36 19 N | 071 12 21 W |
| Nannaquaket Pond | Lake | 0 | Newport | 41 36 35 N | 071 12 01 W |
| Napatree Beach | Locale | 0 | Washington | 41 18 39 N | 071 51 59 W |
| Napatree Point | Cape | 10 | Washington | 41 18 23 N | 071 53 08 W |
| Napatree Point Ledge | Bench | -3 | Washington | 41 18 00 N | 071 53 18 W |
| Narragansett | Populated Place | 6 | Washington | 41 27 00 N | 071 26 58 W |
| Narragansett Bay | Bay | 40 | Bristol | 41 36 04 N | 071 19 19 W |
| Narragansett Beach | Populated Place | 1 | Washington | 41 26 14 N | 071 27 04 W |
| Narragansett Boiler Works (historical) | Locale | 0 | Providence | 41 49 00 N | 071 23 47 W |
| Narragansett Brick Works (historical) | Locale | 13 | Bristol | 41 44 08 N | 071 19 52 W |
| Narragansett Cemetery | Cemetery | 61 | Washington | 41 31 09 N | 071 28 41 W |
| Narragansett Chamber of Commerce Information Center | Building | 7 | Washington | 41 25 48 N | 071 27 21 W |
| Narragansett Church | Church | 33 | Washington | 41 29 35 N | 071 25 34 W |
| Narragansett Electric Plant Manchester Street Powerhouse | Locale | 2 | Providence | 41 48 57 N | 071 24 13 W |
| Narragansett Electric Plant South Street Station | Locale | 1 | Providence | 41 49 07 N | 071 24 18 W |
| Narragansett Elementary School | School | 15 | Washington | 41 26 14 N | 071 28 16 W |
| Narragansett Ferry (historical) | Locale | -3 | Washington | 41 27 30 N | 071 24 58 W |
| Narragansett High School | School | 26 | Washington | 41 25 37 N | 071 28 22 W |
| Narragansett Indian Church | Church | 38 | Washington | 41 24 33 N | 071 39 35 W |
| Narragansett Indian Church | Church | 6 | Washington | 41 22 56 N | 071 38 26 W |
| Narragansett Indian Longhouse and Cultural Center | Locale | 42 | Washington | 41 25 08 N | 071 38 50 W |
| Narragansett Indian Monument | Park | 17 | Washington | 41 26 01 N | 071 27 59 W |
| Narragansett Indian Reservation | Reserve | 19 | Washington | 41 23 50 N | 071 40 13 W |
| Narragansett Marine Lab | Locale | 21 | Washington | 41 29 38 N | 071 25 22 W |
| Narragansett Park Plaza Shopping Center | Locale | 21 | Providence | 41 51 24 N | 071 21 08 W |
| Narragansett Pier | Populated Place | 1 | Washington | 41 25 56 N | 071 27 23 W |
| Narragansett Pier Life Saving Station | Locale | -3 | Washington | 41 25 51 N | 071 27 14 W |
| Narragansett Pier School | School | 26 | Washington | 41 25 36 N | 071 28 19 W |