|Availability||Given to or received from other characters.|
|Appearances||AF, AF+, AC, AFe+, WW, CF, NL|
|Regional names|| Lettre|
To send a letter, the player must first obtain some stationery. Stationary can be purchased from Tom Nook's store, be given to the player from villagers, be found in the dump, or found in the lost property. The player can send letters to the following addressees: villagers in the player's town, other characters in the player's town, the Faraway Museum in Animal Crossing, and the player's future self.
Having selected the recipient, the letter may now be composed. In Animal Crossing, City Folk, and New Leaf, each letter has six lines to write on, whereas a letter in Wild World only has four. The lines containing the writer's name and the receiver's name can also be edited, but the recipient's name cannot be removed. Villagers will notice spelling errors the player makes and may comment on them negatively if the letter comes up in conversation later.
Letters will be received in the postbox outside the player's house, at 9am, 5pm, and 6am, when the game refreshes for a new day. Letters can be received from: other players; villagers; the museum in Animal Crossing; the player's mother; the player's father; from Nintendo, holding special items; special characters such as Jingle and Jack; the Happy Room Academy, with the results of the latest appraisal; and the Bank, notifying the player of how much interest they have earned.
- If a player sends a letter saying "I love you.", the villager may respond with a list of 5 things they love in which the player's name will be one of the 5.
- It is possible to get duplicate letters from different villagers in the same day. You can also receive duplicate letters from the same villager.
- If you send your hometown fruit to a villager when you receive a letter from them the present will be an exotic fruit not yet in your town