CUP may refer to:

• China UnionPay, a payment authorization system common in China
• Comparable uncontrolled price, a method used in transfer pricing
• Cuban peso, ISO 4217 code for one of Cuba's two currencies

A cup is a small open container used for drinking and carrying drinks. It may be made of wood, plastic, glass, clay, metal, stone, china or other materials, and may have a stem, handles or other adornments. Cups are used for drinking across a wide range of cultures and social classes, and different styles of cups may be used for different liquids or in different situations.