The Lowell Regional Transit Authority (LRTA) is a public, non-profit organization in Massachusetts, charged with providing public transportation to the Greater Lowell area.

This primarily includes the city of Lowell and the towns of Andover, Billerica, Burlington, Dracut, Chelmsford, Littleton, Tewksbury, Tyngsborough, Westford and Wilmington.

Since 2004, operation of the LRTA has been subcontracted to First Transit, a subsidiary of the United Kingdom based FirstGroup.

[1][3] All of the routes serve Monday through Friday and most provide Saturday service.

The LRTA owns a fleet of 108 revenue-producing vehicles, which includes 57 Gillig Low Floor buses for scheduled route service and 49 Ford Transit and 2 Ford E450 minibuses for paratransit service.