Guanyu is a Chinese masculine compound name historically borne by one of the most famous figures in Chinese history — Guan Yu (关羽, c. 160-220 CE), the legendary general of the Three Kingdoms period who has been deified across East Asia as the supreme god of war, brotherhood, justice, and righteousness. While 关 (guān) is Guan Yus surname (also meaning gate or pass), 羽 (yǔ) is his given name and means feather or wing. Together, the name evokes his historical persona. Guan Yu served as a sworn brother of the Shu Han founder Liu Bei alongside Zhang Fei in the famous Oath of the Peach Garden (桃园三结义), and his legendary loyalty, martial valor, and uncompromising righteousness have made him one of the most beloved heroes in all of Chinese culture. After his death, Guan Yu was progressively deified across over a millennium and a half — temples to him (关帝庙 Guāndì Miào, Temples of Lord Guan) exist throughout China and the entire Chinese diaspora worldwide, from Singapore to San Francisco. He is worshipped by Chinese police officers, soldiers, merchants, and many others as the supreme deity of righteousness, loyalty, and brotherhood. The compound 关羽 carries supreme cultural significance — perhaps the most famous masculine name in Chinese history. The pinyin Guanyu spelling represents the standard modern Mandarin romanization. While naming a child after Guan Yu directly is uncommon (out of respect), variants and the underlying martial-righteous virtues he embodies inspire countless Chinese masculine names. Chinese parents who choose Guanyu are drawn to its profound supreme historical and religious heritage through one of Chinas most beloved heroes.

The root form of Guanyu is Guanyu (关羽) — meaning Guan feather, named after legendary general.

Guanyu remains a beloved choice. Timeless appeal across cultures and generations.