Pirog is a popular Russian pie made from yeast dough, shortcrust, or puff pastry that is filled with either sweet or savory ingredients. Some of the more popular fillings include meat, fish, mushrooms, cheese, cabbage, potatoes, and fruits such as plums, apples, or a variety of berries.

The pie can be either closed or open-faced. In Russia, pirog is so popular that it has often been considered as a sign of a good housewife.