Rice is a cereal grain, and in its domesticated form is the staple food for over half of the world's human population, particularly in Asia and Africa, due to the vast amount of soil that is able to grow rice. Rice is the seed of the grass species Oryza sativa or, much less commonly, O. glaberrima. Asian rice was domesticated in China some 13,500 to 8,200 years ago, while African rice was domesticated in Africa some 3,000 years ago. Rice has become commonplace in many cultures worldwide; in 2021, 787 million tons were produced, placing it fourth after sugarcane, maize, and wheat. Only some 8% of rice is traded internationally. China, India, and Indonesia are the largest consumers of rice. A substantial amount of the rice produced in developing nations is lost after harvest through factors such as poor transport and storage. Rice yields can be reduced by pests including insects, rodents, and birds, as well as by weeds, and by diseases such as rice blast. Traditional polycultures such as rice-duck farming, and modern integrated pest management seek to control damage from pests in a sustainable way.

धान के बीज को चावल कहते हैं। यह धान से ऊपर का छिलका हटाने से प्राप्त होता है। चावल सम्पूर्ण पूर्वी जगत में प्रमुख रूप से खाए जाने वाला अनाज है। भारत में भात, खिचड़ी सहित काफी सारे पकवान बनते हैं। चावल का चलन दक्षिण भारत और पूर्वी-दक्षिणी भारत में उत्तर भारत से अधिक है।