The Monticello Grange No. 338 is a historic civic building on United States Route 1 in the heart of Monticello, Maine. Built in 1922 by the local Grange organization, it served the town for many years as its only performance space, hosting social events, town meetings, and school graduations, and is still used for some of these purposes. It was listed on the National Register of Historic Places in 2000.