| Michaelmas and Upolu Cays National Park Queensland | |
|---|---|
 Michaelmas Cay | |
  Michaelmas and Upolu Cays National Park | |
| Nearest town or city | Cairns |
| Coordinates | 16°36′30″S 145°58′21″E / 16.60833°S 145.97250°E |
| Established | 1975 |
| Area | 30 km2 |
| Managing authorities | Queensland Parks and Wildlife Service |
| Website | Michaelmas and Upolu Cays National Park |
| See also | Protected areas of Queensland |
Michaelmas and Upolu Cays is a national park in Queensland, Australia, 1,409 km (876 mi) north-northwest of Brisbane and 33 km (21 mi) east of Cairns. It comprises two small cays on Michaelmas Reef, which forms the north-eastern section of the Arlington reef complex, within the Great Barrier Reef.