Chaat, or chāt is a family of savoury snacks that originated in India, typically served as an hors d'oeuvre or at roadside tracks from stalls or food carts across South Asia in India, Pakistan, Nepal and Bangladesh. With its origins in Uttar Pradesh, India, chaat has become immensely popular in the rest of South Asia.

A snack is a small portion of food generally eaten between meals. A snack is often less than 200 calories, but this can vary. Snacks come in a variety of forms including packaged snack foods and other processed foods, as well as items made from fresh ingredients at home.