Hawaii Route 37 is a 24.1-mile (38.79 km) road on the island of Maui in Maui County, Hawaii, United States.

Route 37's northern terminus is with Route 36, where it heads eastward as Haleakala Highway.

A short 1.6 mile section of the Kula Highway between Thompson and Kamaole Roads is also called Ulupalakua Road.

The entire route is in Maui County.

Media related to Hawaii Route 37 at Wikimedia Commons