Joy diswashing liquid is a major brand of dish-cleaning product made by U.S.-based personal and cleaning products manufacturer and marketer Procter & Gamble.

Joy was an early example of a product being reformulated to include the fragrance of lemons and helped begin the overall trend toward citrus-scented cleaning products. Joy is designed for use in the hand washing of dishes, not automatic dishwashers, and as such also contains emollients desinged to protect the user's hands from drying out.

Joy is currently available in several fragrances and varieties, including an anti-bacterial formula, and is available in both "regular" and "ultra" (concentrated) strengths. The product is probably best-known for its long-term sponsorship of several "soap operas", perhaps most notably pioneering television soaper Search for Tomorrow.