{{Infobox Former Country |native_name = lang: 고려국 (高麗國)
lang: 고려왕조 (高麗王朝) |conventional_long_name = Kingdom of Goryeo |common_name = Goryeo | |continent = Asia |region = Korean Peninsula |country = Korea |era = |government_type = Monarchy | |year_start = 918 |year_end = 1392 | |event_start = Coronation of Taejo |date_start = June 15 918 |event_end = Abdication of Gongyang |date_end = July 17 1392 | |event1 = Unification of the Later Three Kingdoms |date_event1 = 936 |event2 = Korea-Khitan Wars |date_event2 = 993 - 1019 |event3 = Mongolian invansions |date_event3 = 1231 - 1270 |event4 = Completion of Tripitaka Koreana |date_event4 = 1251 | |event_pre = Later Three Kingdoms rise |date_pre = 900 | |

|p1 = Unified Silla |flag_p1 = |p2 = Balhae |flag_p2 = |s1 = Joseon |flag_s1 = Flag of Korea 1882.svg | |image_flag =

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| |image_coat = |symbol = |symbol_type = | |image_map = Locationmap Goryeo.png |image_map_caption = Goryeo in 1374 | |capital = Gaegyeong |latd= 37|latm= 58|latNS= N|longd= 126|longm= 33|longEW= E | |national_motto = |national_anthem = |common_languages = Korean |religion = Buddhism, Confucianism, Taoism, Korean shamanism |currency = | |title_leader = King |leader1 = Taejo (first) |year_leader1 = 918 - 946 |leader2 = Gwangjong |year_leader2 = 949 - 975 |leader3 = Gongmin |year_leader3 = 1259 - 1274 |leader4 = Gongyang (last) |year_leader4 = 1389 - 1392 | |

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The Goryeo Dynasty (918-1392) (also spelled Koryŏ) was a sovereign state established in 918 by Taejo Wang Kon. It united the Later Three Kingdoms in 936 and ruled most of the Korean peninsula until it was removed by the Joseon dynasty in 1392. Goryeo expanded its borders to present-day Wonsan in the north-east(936~943) and the Amnok River(993).

Two of this period's most notable products are Goryeo celadon pottery and the Tripitaka Koreana  the Buddhist scriptures (Tripitaka) carved onto roughly 80,000 woodblocks and stored, and still in, Haeinsa. Goryeo also created the world's first metal-based movable type printing press in 1234 and the oldest surviving movable metal type book, the Jikji, was made in 1377.

In 668, Silla conquered Baekje and Goguryeo with Tang Dynasty help, but by the late 9th century it was tottering, its monarchs being unimaginative and pressed by the power of powerful statesmen. Many burglars and outlaws bubbled and in 900 Gyeon Hwon revolted from Silla control in the Jeolla region as Hubaekje and next year Gung Ye revolted from the northern regions as Hugoguryeo(Taebong). A son-of-a regional lord, Wang Geon went into Hugoguryeo as a general.