A salad is a dish consisting of mixed, mostly natural ingredients with at least one raw ingredient. They are often dressed, and typically served at room temperature or chilled, though some can be served warm.

Garden salads use a base of leafy greens such as lettuce, arugula/rocket, kale or spinach; they are common enough that the word salad alone often refers specifically to garden salads. Other types include bean salad, tuna salad, bread salad (e.g. fattoush, panzanella), vegetable salads without leafy greens (e.g. Greek salad, potato salad, coleslaw), sōmen salad (a noodle-based salad), fruit salad, and desserts like jello salad.

Oil used on salads can be found in the 17th-century colony of New Netherland (later called New York, New Jersey and Delaware). A list of common items arriving on ships and their designated prices when appraising cargo included "a can of salad oil at 1.10 florins" and "an anker of wine vinegar at 16 florins". In a 1665 letter to the Director of New Netherland from the Island of Curaçao there is a request to send greens: "I request most amicably that your honors be pleased to send me seed of every sort, such as cabbage, carrots, lettuce, parsley, etc. for none can be acquired here and I know that your honor has plenty,...".

A salad can be a composed salad (with the ingredients specifically arranged on the serving dish) or a tossed salad (with the ingredients placed in a bowl and mixed, often with salad dressing). An antipasto plate, the first dish of a formal Italian meal, is similar to a composed salad, and has vegetables, cheese, and meat.

Main course salads (known as dinner salads or as entrée salads in the United States) may contain small pieces of poultry, seafood, or steak. Caesar salad, chef salad, Cobb salad, Chinese chicken salad, Michigan salad, and Pittsburgh salad are dinner salads. A wide variety of cheeses are used in dinner salads, including Roquefort blue cheese (traditional for a Cobb salad), and Swiss, Cheddar, Jack, and Provolone (for chef and Cobb salads).

Dessert salads rarely include leafy greens and are often sweet. Common variants are made with gelatin or whipped cream; e.g. jello salad, pistachio salad, and ambrosia. Other forms of dessert salads include regional dishes such as Midwestern America's ambrosia-like glorified rice and cookie salad, which contains crumbled cookies as an ingredient.