Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Martin School | School | 7 | Alameda | 37 40 35 N | 122 08 10 W |
| Martin Slough | Stream | | Humboldt | 40 45 08 N | 124 10 55 W |
| Martin Spring | Spring | 488 | Napa | 38 34 50 N | 122 25 14 W |
| Martin Springs | Spring | 1831 | Lassen | 40 33 07 N | 120 55 35 W |
| Martin Temple African Methodist Episcopal Zion Church | Church | 22 | Los Angeles | 33 54 11 N | 118 13 11 W |
| Martin Tudor-Jurupa Hills Regional Park | Park | 455 | San Bernardino | 34 02 27 N | 117 26 18 W |
| Martin Van Buren Elementary School | School | -9 | Riverside | 33 42 08 N | 116 11 59 W |
| Martin's Achievement School | School | 27 | Sacramento | 38 39 45 N | 121 22 24 W |
| Martina Spring | Spring | 617 | Kern | 35 07 57 N | 118 46 08 W |
| Martindale Canyon | Valley | | Los Angeles | 34 34 42 N | 118 22 16 W |
| Martinelli Park | Park | 14 | Marin | 38 05 48 N | 122 51 05 W |
| Martinez | Populated Place | 7 | Contra Costa | 38 01 10 N | 122 08 03 W |
| Martinez | Populated Place | -39 | Riverside | 33 33 46 N | 116 09 11 W |
| Martinez | Populated Place | 665 | Tuolumne | 38 01 24 N | 120 22 47 W |
| Martinez Adult High-Montecito High School | School | 21 | Contra Costa | 38 00 02 N | 122 07 51 W |
| Martinez Branch Contra Costa County Library | Building | 7 | Contra Costa | 38 01 05 N | 122 08 04 W |
| Martinez Canyon | Valley | | Riverside | 33 31 15 N | 116 12 03 W |
| Martinez Canyon | Valley | | San Luis Obispo | 35 18 26 N | 120 07 37 W |
| Martinez Cemetery | Cemetery | -38 | Riverside | 33 33 37 N | 116 09 09 W |
| Martinez City Hall | Building | 8 | Contra Costa | 38 00 51 N | 122 08 08 W |
| Martinez Community Hospital | Hospital | 26 | Contra Costa | 38 00 28 N | 122 08 01 W |
| Martinez Creek | Stream | | El Dorado | 38 37 07 N | 120 48 47 W |
| Martinez Creek | Stream | | Fresno | 36 22 38 N | 120 21 27 W |
| Martinez Creek | Stream | | Riverside | 33 36 16 N | 116 36 37 W |
| Martinez Dam | Dam | 24 | Contra Costa | 38 00 35 N | 122 06 29 W |
| Martinez Elementary School | School | 17 | Contra Costa | 38 00 48 N | 122 07 53 W |
| Martinez Gulch | Valley | | Imperial | 33 16 08 N | 115 14 54 W |
| Martinez Historical Museum | Building | 5 | Contra Costa | 38 01 10 N | 122 08 07 W |
| Martinez Junior High School | School | 18 | Contra Costa | 38 00 48 N | 122 07 50 W |
| Martinez Mountain | Summit | 1986 | Riverside | 33 33 27 N | 116 20 42 W |
| Martinez Municipal Park | Park | 47 | Contra Costa | 38 00 54 N | 122 08 47 W |
| Martinez Place | Populated Place | 593 | San Luis Obispo | 35 17 17 N | 120 09 58 W |
| Martinez Ranch | Locale | 145 | San Diego | 32 33 05 N | 116 59 01 W |
| Martinez Regional Shoreline Park | Park | 2 | Contra Costa | 38 01 34 N | 122 07 55 W |
| Martinez Reservoir | Reservoir | 25 | Contra Costa | 38 00 39 N | 122 06 22 W |
| Martinez Ridge | Ridge | 104 | Contra Costa | 37 59 19 N | 122 07 10 W |
| Martinez Shopping Center | Locale | 28 | Ventura | 34 14 07 N | 119 10 09 W |
| Martinez Spring | Spring | 590 | Fresno | 36 20 23 N | 120 24 56 W |
| Martinez Water Purification Plant | Locale | 13 | Contra Costa | 38 00 47 N | 122 06 48 W |
| Martinez Waterfront Park | Park | 5 | Contra Costa | 38 01 19 N | 122 08 03 W |
| Martinez Yacht Harbor | Locale | 0 | Contra Costa | 38 01 38 N | 122 08 14 W |
| Martingale Trailhead Park | Park | 247 | Los Angeles | 33 45 55 N | 118 20 07 W |
| Martini and Prati Winery | Locale | 61 | Sonoma | 38 28 08 N | 122 51 02 W |
| Martini Creek | Stream | | San Mateo | 37 33 09 N | 122 30 51 W |
| Martini Spring | Spring | 838 | Mendocino | 39 43 04 N | 123 08 58 W |
| Martins | Populated Place | 826 | Los Angeles | 34 33 58 N | 118 39 35 W |
| Martins Beach | Populated Place | 7 | San Mateo | 37 22 30 N | 122 24 29 W |
| Martins Cow Camp | Locale | 2286 | Tuolumne | 38 17 21 N | 119 50 02 W |
| Martins Ferry (historical) | Populated Place | 96 | Humboldt | 41 12 29 N | 123 45 19 W |
| Martins Ferry Bridge | Bridge | 44 | Humboldt | 41 12 23 N | 123 45 22 W |
| Martins Ferry School | School | 160 | Humboldt | 41 12 37 N | 123 45 17 W |
| Martins Landing Field (historical) | Airport | 11 | Orange | 33 41 04 N | 117 51 58 W |
| Martins Well | Well | 674 | San Bernardino | 34 18 37 N | 114 55 01 W |
| Martinus Corner | Populated Place | 294 | Monterey | 35 56 24 N | 121 07 09 W |
| Martis Creek | Stream | | Placer | 39 21 00 N | 120 07 06 W |
| Martis Creek Lake | Reservoir | 1749 | Nevada | 39 19 45 N | 120 07 04 W |
| Martis Creek Lake Dam | Dam | 1749 | Nevada | 39 19 45 N | 120 07 04 W |
| Martis Peak | Summit | 2656 | Placer | 39 17 30 N | 120 01 58 W |
| Martis Valley | Valley | | Placer | 39 20 48 N | 120 07 06 W |
| Marty (historical) | Populated Place | 8 | Yolo | 38 37 47 N | 121 34 57 W |
| Martyrs Memorial and Museum of the Holocaust | Building | 44 | Los Angeles | 34 03 51 N | 118 22 11 W |
| Martys Ranch | Locale | 584 | Santa Clara | 37 21 40 N | 121 34 39 W |
| Marvel Canyon | Valley | | Inyo | 36 06 52 N | 117 06 43 W |
| Marvin A Dutcher Elementary School | School | 33 | Stanislaus | 37 30 23 N | 120 50 12 W |
| Marvin Chapel (historical) | Church | 22 | Glenn | 39 25 11 N | 121 58 01 W |
| Marvin Chapel Cemetery | Cemetery | 22 | Glenn | 39 25 12 N | 121 58 04 W |
| Marvin Elementary School | School | 30 | Los Angeles | 34 02 08 N | 118 21 50 W |
| Marvin Elementary School | School | 115 | San Diego | 32 47 47 N | 117 04 05 W |
| Marvin Marshall Chidlren's Center | School | 29 | Sacramento | 38 36 51 N | 121 20 23 W |
| Marvin Pass | Gap | 2775 | Tulare | 36 43 49 N | 118 44 06 W |
| Marvin Ranch | Locale | 1454 | Sierra | 39 37 20 N | 120 57 25 W |
| Marwyck Ranch (historical) | Locale | 286 | Los Angeles | 34 15 13 N | 118 32 19 W |
| Marx Meadows | Flat | 54 | San Francisco | 37 46 17 N | 122 29 07 W |
| Mary A Deterding Charter Elementary School | School | 36 | Sacramento | 38 37 19 N | 121 19 31 W |
| Mary Aaron Memorial Museum | Building | 19 | Yuba | 39 08 34 N | 121 35 23 W |
| Mary Andrews Clark Memorial Home | Building | 125 | Los Angeles | 34 03 34 N | 118 15 56 W |
| Mary Ann Crocker Old Ladies Home | Building | 45 | San Francisco | 37 47 14 N | 122 26 14 W |
| Mary Ann Ridge | Ridge | 1245 | Lake | 39 11 38 N | 122 45 13 W |
| Mary Anna Mine | Mine | 452 | Placer | 39 02 11 N | 120 42 43 W |
| Mary Bird High School | School | 14 | Solano | 38 15 57 N | 122 01 47 W |
| Mary Blaine Meadow | Flat | 1922 | Trinity | 41 05 19 N | 123 15 28 W |
| Mary Blaine Mine | Mine | 2013 | Trinity | 41 05 32 N | 123 15 44 W |
| Mary Blaine Mountain | Summit | 2043 | Trinity | 41 05 35 N | 123 15 28 W |
| Mary Buren School | School | 26 | Santa Barbara | 34 58 10 N | 120 34 07 W |
| Mary Cameron Mine | Mine | 1116 | Plumas | 40 06 24 N | 121 05 34 W |
| Mary E Bennett School | School | 124 | Los Angeles | 34 03 46 N | 118 16 02 W |
| Mary E Bragg Elementary School | School | 15 | Los Angeles | 33 51 20 N | 118 05 20 W |
| Mary E Silveira Elementary School | School | 28 | Marin | 38 02 15 N | 122 32 39 W |
| Mary Easton Picnic Area | Locale | 60 | Santa Cruz | 37 00 24 N | 121 54 28 W |
| Mary Ellen Place | Populated Place | 487 | Tehama | 40 07 12 N | 122 37 56 W |
| Mary Farmar Elementary School | School | 35 | Solano | 38 03 46 N | 122 10 13 W |
| Mary Fay Pendleton Elementary School | School | 98 | San Diego | 33 19 30 N | 117 18 19 W |
| Mary Fork | Stream | | Shasta | 40 44 26 N | 122 28 06 W |
| Mary Gomez Park | Park | 31 | Santa Clara | 37 20 12 N | 121 58 07 W |
| Mary Harrison Mine | Mine | 584 | Mariposa | 37 41 38 N | 120 11 12 W |
| Mary Help of Christians Church | Church | 6 | Alameda | 37 46 39 N | 122 14 10 W |
| Mary Immaculate Catholic Church | Church | | Los Angeles | 34 15 33 N | 118 26 05 W |
| Mary Immaculate Queen School | School | 71 | Kings | 36 18 39 N | 119 46 48 W |
| Mary Immaculate School | School | 292 | Los Angeles | 34 15 32 N | 118 26 04 W |
| Mary Jane Mine | Mine | 1834 | Nevada | 39 23 16 N | 120 38 38 W |
| Mary Jo 841-002 Dam | Dam | 781 | San Diego | 32 42 48 N | 116 38 33 W |
| Mary Jo Dam | Dam | 781 | San Diego | 32 42 48 N | 116 38 33 W |
| Mary Lake | Lake | 6 | Sutter | 38 47 22 N | 121 41 12 W |
| Mary Lake | Lake | 2933 | Tuolumne | 38 08 40 N | 119 33 41 W |
| Mary Len Mine | Mine | 165 | Placer | 38 50 57 N | 121 09 07 W |
| Mary Lewis Elementary School | School | 351 | San Bernardino | 34 04 41 N | 117 24 39 W |
| Mary Lode Mine | Mine | 390 | Imperial | 33 07 48 N | 115 03 36 W |
| Mary Manor Mobile Estates (subdivision) | Populated Place | 30 | Santa Clara | 37 23 04 N | 122 02 48 W |
| Mary Manor Shopping Center | Locale | 34 | Santa Clara | 37 22 43 N | 122 02 49 W |
| Mary McLeod Bethune School | School | 451 | Riverside | 33 52 47 N | 117 13 05 W |