| name | image | heritage designation | type | Area (m²) | date founded | latitude (°) | longitude (°) | Website | Map |
|---|---|---|---|---|---|---|---|---|---|
| Aggtelek National Park |  | Reservations/Natural Type | 201,830,000 | 01/1985 | 48.4666671753 | 20.4833335876 | website | Map | |
| Alaska Raptor Center | Reservations/Natural Type | 1980 | 57.0499992371 | -135.3000030518 | website | Map | |||
| Alexandra Park, Hastings |  | Reservations/Natural Type | 26/06/1882 | 50.8499984741 | 0.5500000119 | website | Map | ||
| Amani Nature Reserve |  | Reservations/Natural Type | 08/05/1997 | -5.0833334923 | 38.6666679382 | website | Map | ||
| Aoraki / Mount Cook National Park |  | Reservations/Natural Type | 706,960,000 | 1953 | -43.7333335876 | 170.1000061035 | website | Map |