| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| MARIA DOLORES | airport | Chile | -37.40 | -72.43 | 374 | 0 | |
| MARIA MONTEZ INTL | airport | Dominican Republic | 18.25 | -71.12 | 10 | 0 | |
| MARIA PARHAM HOSPITAL | airport | United States | 36.33 | -78.45 | 465 | 0 | |
| MARIA REICHE NEUMAN | airport | Peru | -14.85 | -74.96 | 1860 | 0 | |
| MARIAN | airport | United States | 40.99 | -75.75 | 1285 | 0 | |
| MARIAN AIRPARK | airport | United States | 34.85 | -100.20 | 2008 | 0 | |
| MARIAN HEALTH CENTER NR 2 | airport | United States | 42.50 | -96.40 | 1170 | 0 | |
| MARIAN HEALTH CENTER NR 3 | airport | United States | 42.51 | -96.40 | 1250 | 0 | |
| MARIAN MEDICAL CENTER | airport | United States | 34.95 | -120.41 | 256 | 0 | |
| MARIANA GRAJALES | airport | Cuba | 20.09 | -75.16 | 56 | 0 | |
| MARIANNA LEE CO STEVE EDWARDS FLD | airport | United States | 34.78 | -90.81 | 217 | 0 | |
| MARIANNA MUNI | airport | United States | 30.84 | -85.18 | 110 | 0 | |
| MARIANO MELGAR | airport | Peru | -16.79 | -71.89 | 3890 | 0 | |
| MARIANO MORENO | airport | Argentina | -34.56 | -58.79 | 105 | 0 | |
| MARIAVILLE AERODROME | airport | United States | 42.82 | -74.15 | 1260 | 0 | |
| MARIBOR | airport | Slovenia | 46.48 | 15.69 | 876 | 0 | |
| MARICA | airport | Brazil | -22.92 | -42.83 | 13 | 0 | |
| MARICOPA COUNTY SHERIFF'S OFFICE | airport | United States | 33.38 | -111.83 | 1257 | 0 | |
| MARICOPA MEDICAL CENTER | airport | United States | 33.46 | -112.02 | 1117 | 0 | |
| MARIE GALANTE | airport | Guadeloupe | 15.87 | -61.27 | 16 | 0 | |
| MARIEHAMN | airport | Finland | 60.12 | 19.90 | 17 | 0 | |
| MARIENTAL | airport | Namibia | -24.61 | 17.93 | 3650 | 0 | |
| MARIETTA MEMORIAL HOSPITAL | airport | United States | 39.43 | -81.46 | 742 | 0 | |
| MARILIA | airport | Brazil | -22.20 | -49.93 | 2122 | 0 | |
| MARINA DI CAMPO | airport | Italy | 42.76 | 10.24 | 31 | 0 | |
| MARINA MUNI | airport | United States | 36.68 | -121.76 | 134 | 0 | |
| MARINDUQUE | airport | Philippines | 13.36 | 121.83 | 32 | 0 | |
| MARINE CITY | airport | United States | 42.72 | -82.60 | 613 | 0 | |
| MARINE CONSULTANTS INC | airport | United States | 29.71 | -95.27 | 50 | 0 | |
| MARINE HELICOPTER SQUADRON 361 | airport | United States | 40.96 | -72.57 | 30 | 0 | |
| MARINE SHALE PROCESSORS INC | airport | United States | 29.66 | -91.13 | 20 | 0 | |
| MARINERS HOSPITAL | airport | United States | 25.00 | -80.52 | 9 | 0 | |
| MARIO RIBEIRO | airport | Brazil | -16.71 | -43.82 | 2191 | 0 | |
| MARIO'S FLYING PIZZA | airport | United States | 29.75 | -96.29 | 233 | 0 | |
| MARION | airport | United States | 42.03 | -91.53 | 862 | 0 | |
| MARION CENTER SPEEDWAY | airport | United States | 40.81 | -79.04 | 1500 | 0 | |
| MARION CO | airport | United States | 32.28 | -84.50 | 682 | 0 | |
| MARION CO | airport | United States | 34.18 | -79.33 | 92 | 0 | |
| MARION CO BROWN FLD | airport | United States | 35.06 | -85.59 | 641 | 0 | |
| MARION CO RANKIN FITE | airport | United States | 34.12 | -88.00 | 442 | 0 | |
| MARION CO RGNL | airport | United States | 36.29 | -92.59 | 719 | 0 | |
| MARION CRITTENDEN CO | airport | United States | 37.33 | -88.12 | 652 | 0 | |
| MARION GENERAL HOSPITAL | airport | United States | 40.57 | -83.13 | 998 | 0 | |
| MARION MUNI | airport | United States | 38.34 | -96.99 | 1390 | 0 | |
| MARION MUNI | airport | United States | 40.62 | -83.06 | 993 | 0 | |
| MARION MUNI | airport | United States | 40.49 | -85.68 | 859 | 0 | |
| MARIPASOULA | airport | French Guiana | 3.66 | -54.04 | 406 | 0 | |
| MARIPOSA YOSEMITE | airport | United States | 37.51 | -120.04 | 2254 | 0 | |
| MARIQUITA | airport | Colombia | 5.21 | -74.88 | 1531 | 0 | |
| MARISCAL LAMAR | airport | Ecuador | -2.89 | -78.98 | 8306 | 0 | |
| MARISCAL SUCRE | airport | Venezuela | 10.25 | -67.65 | 1338 | 0 | |
| MARISCAL SUCRE INTL | airport | Ecuador | -0.14 | -78.49 | 9228 | 0 | |
| MARITIME INSTITUTE | airport | United States | 39.21 | -76.67 | 170 | 0 | |
| MARITSA | airport | Greece | 36.38 | 28.11 | 204 | 0 | |
| MARIUPOL INTL | airport | Ukraine | 47.08 | 37.45 | 251 | 0 |