This is a list of postal codes for the province of Newfoundland and Labrador in Canada with the prefix A.
- A0A - Southeastern Avalon Peninsula
- A0B - Western Avalon Peninsula, and the northwest coast of Placentia Bay
- A0C - Bonavista Peninsula
- A0E - Burin Peninsula, and the southwest coast of Trinity Bay
- A0H - Central Newfoundland, and the southeast coast of Notre Dame Bay, and the north coast of Fortune Bay
- A0G - Northeastern Newfoundland
- A0J - Southwest coast of Notre Dame Bay
- A0K - Eastern Labrador, the Northern Peninsula, and the Baie Verte Peninsula
- A0L - Corner Brook vicinity
- A0M - Southwestern Newfoundland
- A0N - Southeastern coast of St. George's Bay, and the Port au Port Peninsula
- A0P - Central Labrador
- A0R - Western and Northern Labrador
- A1A - St. John's
- A1B - St. John's
- A1C - St. John's
- A1E - St. John's
- A1G - St. John's
- A1H - St. John's
- A1K - Torbay
- A1L - Paradise
- A1N - St. John's
- A1S - St. John's
- A1V - Gander
- A1W - Manuels
- A1X - Conception Bay
- A1Y - Carbonear
- A2A - Grand Falls
- A2B - Windsor
- A2H - Cornerbrook
- A2N - Stephenville
- A2V - Labrador City
