World Bread Day is an international observance celebrated on October 16 every year. It was initiated by the International Union of Bakers and Confectioners (UIBC). The observance is dedicated to a staple food that has been of important around the world since the dawn of agriculture.

Bread is one of the oldest prepared foods. It is possible that people used starch extract from the roots of plants to cook a primitive form of flatbread as early as 30,000 years ago. Grains became the mainstay of making bread with the dawn of Neolithic age. The ancient Egyptians are believed to be the first to use yeast to leaven the dough.

Bread is the staple food in the Middle East, North Africa, Europe, and in European-derived countries, whereas rice is the staple in East Asia. It is usually made from wheat, but bread can be also made from other cereals, including rye, barley, oats, maize, rice, millet, and sorghum. In many cuisines, there are traditional bread recipes that have been passed down from generation to generation.

Since ancient times, bread has had a significance beyond mere nutrition in many cultures, where it is a metaphor for basic necessities and living conditions in general. In some religions, including Christianity and Judaism, bread is an important ritual element.