Merrimack Valley Transit, formerly known as Merrimack Valley Regional Transit Authority is a public, non-profit organization in Massachusetts, United States, charged with providing public transportation to an area consisting of the cities and towns of Amesbury, Andover, Boxford, Georgetown, Groveland, Haverhill, Lawrence, Merrimac, Methuen, Newbury, Newburyport, North Andover, Rowley, Salisbury and West Newbury, as well as a seasonal service to the popular nearby summer destination of Hampton Beach, New Hampshire.

[2] MEVA started operation in 1976, having been created under Chapter 161B of the Massachusetts General Laws.

Since 1983, operation of the MEVA has been subcontracted to First Transit, a subsidiary of the United Kingdom based FirstGroup.

[3][4] As of March 1, 2022 all local routes are free.

MEVA operates 24 year-round routes in northeastern Massachusetts: