A tariff or customs duty is a tax on imported or exported goods.

A tariff may also refer to:

• Tariff, a schedule of prices for the sale or rental of a product or service
  • Tariff (regulation), a regulated rate

• Tariff (criminal law), a minimum prison sentence in British criminal law
• Tariff, Ohio, an unincorporated community in the US
• Tariff (sports), a rating used in several sports