Crown Prince Maui (; born 912), born Kim Il () was the last Silla crown prince as the son of its last ruler, King Gyeongsun.
The name Maui means "hemp dress", and comes from the fact that he spent his whole life wearing clothes made of hemp linen when he went into self-imposed exile after the fall of Silla. Due to the decline of Silla, which had lost control over much of its former territory and had its capital brutally sacked, his father surrendered Silla to Goryeo. After hearing the news, Prince Maui opposed the surrender and fled to Mount Kumgang. Currently, the Buan Kim clan and the T'ongch'Ã Ân Kim clan regard Prince Maui as their founding ancestor.