The Jeonju Lee Royal Family Association is a family association from South Korea, and it was founded by the Jeonju Yi (Lee) clan, the household of Joseon and the Korean Empire, which were the ruling house of the whole Korea. The association originated from several national institutions of Joseon dynasty, and its recent main activities, after the World War II, include holding annual Jongmyo jerye, the worship rites of the royal ancestors, and compiling genealogy books of the descendants from the House of Yi.

Jongmyo jerye (Korean: 종묘제례) or jongmyo daeje (종묘대제) is a traditional rite held for worshipping the deceased Joseon monarchs in Jongmyo Shrine, Seoul, South Korea. It is held every year on the first Sunday of May. The jongmyo rite is usually accompanied with the court music playing (Jerye-ak) and dance called Ilmu or line dance. Jongmyo jerye and jeryeak were designated as the first of South Korea's Masterpieces of the Oral and Intangible Heritage of Humanity by UNESCO in 2001.