The Andover Village Improvement Society (AVIS) is a private land trust in Andover, Massachusetts. Founded in 1894, AVIS is the second oldest land preservation society in the United States. Its goal is to acquire land within Andover and preserve it in its natural state.
The organization controls 29 reservations totaling about 1,100 acres (4.5 km2), with 30 miles (48 km) of trails for hiking, skiing, or other passive recreational use. The largest AVIS reservations are Deer Jump at 131 acres (0.53 km2), Goldsmith at 170 acres (0.69 km2), and Rafton at 226 acres (0.91 km2). Motor vehicles, hunting, fires, or camping in these conservation lands are prohibited. Volunteer wardens are responsible for the care and oversight of each reservation.
With the rapid suburbanization and development occurring in Andover since the 1970s, AVIS has played a vital role in preserving Andover's land.