Mozzarella (English: , Italian: [mottsaˈrɛlla]; Neapolitan: muzzarella [muttsaˈrɛllə]) is a southern Italian cheese traditionally made from Italian buffalo's milk by the pasta filata method.

Fresh mozzarella is generally white but when seasoned it turns to a light yellow depending on the animal's diet. Due to its high moisture content, it is traditionally served the day after it is made but can be kept in brine for up to a week or longer when sold in vacuum-sealed packages. Low-moisture mozzarella can be kept refrigerated for up to a month, though some shredded low-moisture mozzarella is sold with a shelf life of up to six months. Mozzarella is used for most types of pizza and several pasta dishes or served with sliced tomatoes and basil in Caprese salad.