|Place of origin||Germany|
|Serving temperature||Cold (some warm)|
|Ingredients generally used||Eggs, mayonnaise|
Potato salad is a salad dish made from boiled potatoes, usually containing a dressing and a variety of other ingredients such as boiled eggs and raw vegetables.
In the United States, it is generally considered a side dish, and usually accompanies the main course.
Potato salad is widely believed to have originated in Germany, spreading largely throughout Europe, the United States, and later Asia. American potato salad most likely originated from recipes brought to the U.S. by way of German and other European immigrants during the nineteenth century.
American-style potato salad is served cold or at room temperature. Ingredients often include mayonnaise or a comparable substitute (such as yogurt or sour cream), herbs, and raw vegetables (such as onion and celery). German-style potato salad is served warm or at room temperature and is made with a vinaigrette, (rather than a creamy mayonnaise-based dressing), and typically includes bacon. Asian-style potato salad is similar to American-style potato salad, but has a sweeter and eggier flavor.
The earliest known American potato salad recipes date back to the mid 19th century, or mid 1800s, and is rooted in German cuisine which was introduced to the United States by European settlers. Early American potato salad was made from cooked potatoes that were typically dressed with oil, vinegar and herbs. 
A version of potato salad in Japan is known as potesara (or potesala ポテサラ), an English loanword portmanteau. It traditionally consists of the primary potato salad ingredients (mashed boiled potatoes, boiled eggs) with vegetables (cucumber, onion, carrot) and ham mixed with a dressing of mayonnaise, rice vinegar, and karashi mustard.