Dawn is an American brand of dishwashing liquid owned by Procter &amp; Gamble. Introduced in 1973, it is the best-selling brand of dishwashing liquid in the United States. Besides being used for dishwashing purposes, Dawn products are also used to remove grease from other items, such as animal fat spilled onto highways, and oil on animals, such as during the "Exxon Valdez" and "Deepwater Horizon" oil spills.