Daigo may refer to:

• Daigo (Zen) (大悟), a Buddhist term meaning great enlightenment or great realization
• Daigo (Shōbōgenzō) (大悟), or Great Realization, a book in Eihei Dōgen's Shōbōgenzō
• Daigo Temple (醍醐寺), from which Emperor Daigo took his name

• Emperor Daigo (醍醐天皇), Emperor of Japan between 897 and 930
• Daigo family, a branch of the Ichijō family of Japanese nobility
• Daigo (musician) (born 1978), Japanese singer-songwriter, actor, talent, and voice actor
• Daigo (name)
• Daigo Umehara, or simply "Daigo", Japanese competitive fighting game player

• Daigo, Fushimi, Kyoto, a district in the ward of Fushimi-ku, Kyoto
• Daigo Station (Kyoto) (醍醐駅), a train station
• Daigo Station (Akita) (醍醐駅), a train station
• Daigo, Ibaraki (大子町), a town in Ibaraki Prefecture

• Daigo (dairy product) (醍醐), or ghee, which is theorized to have been made in ancient Japan
• Daigo of the Heavenly Illusion Star (天幻星・大五, Tengensei Daigo), aka Shishi Ranger (シシレンジャー, Shishi Renjā) from Gosei Sentai Dairanger

• Daigou (代购), the unauthorized import of foreign goods into China

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