The Nuʻuanu Pali Tunnels are a set of four highway tunnels on the Pali Highway which pass through the Nuʻuanu Pali in Hawaii, United States. These tunnels serve as one of three trans-Koʻolau routes between Honolulu and the communities of windward Oʻahu.
Also, the Nuuanu Pali Tunnels serve as a major transportation route from Kaneohe and Kailua over to Honolulu. These tunnels and the Pali Highway were built to provide a safer route through the mountain ridge, replacing a narrow, winding, and dangerous road over the mountain.