A balikbayan box (literally returnees to one's homeland'' box) is a ubiquitous cardboard box containing any number of small items and sent by an overseas Filipino known as a "balikbayan". Though often shipped by freight forwarders specializing in balikbayan boxes by sea, such boxes can be brought by Filipinos returning to the Philippines by air.

These boxes might contain nearly anything that can fit and that the sender thinks the recipient would like, regardless of whether those items can be bought cheaply in the Philippines, such as non-perishable food, toiletries, household items, electronics, toys, designer clothing, or items hard to find in the Philippines.

A balikbayan box intended for air travel is designed to conform to airline luggage restrictions and many Filipino stores carry them. Some boxes come with a cloth cover and side handles. Others are tightly secured with tape or rope, and thus not confused with an ordinary moving box more lightly wrapped.

Shipped boxes are delivered directly to the recipient, nearly always the family of the overseas Filipino.

Part of the attraction of the balikbayan box is economic. If the items were sent individually or in smaller boxes through postal services, the cost could be significant. The tradeoff is a long transit time by container ships, typically taking several weeks, and the lack of a solid delivery date.

Another part of the attraction is the cultural expectation that returning travelers will bring gifts to family, friends and colleagues left behind in the Philippines. In this way, it is related to the practice of "pasalubong"