Band-Aid is the brand name for Johnson & Johnson's line of adhesive bandages and related products. However, much of the consuming public in the United States, India, Canada, Brazil and Australia uses the term band-aid generically, to refer to any such adhesive bandages (see genericized trademark). Such bandages are better known in many parts of the world as an 'adhesive plaster', 'sticking plaster' or simply 'plaster'.

The phrase "Band-aid" has also entered usage as a term for any temporary fix. (e.g. "Band-aid solutions were used to fix the leak.")