Route 114A is an alternate state route to Rhode Island Route 114, located along the Massachusetts – Rhode Island border in East Providence, RI and Seekonk, MA.

The road begins and ends within East Providence in Rhode Island at Route 114.

Most of the road, however, is located within Seekonk and designated as Massachusetts Route 114A.

It crosses into the Massachusetts town of Seekonk after 0.1 miles (0.16 km) and continues north as Mink Street then Fall River Avenue through Seekonk center.

This is the only instance in Massachusetts of an "A" or "alternate" route carrying the numerics for a highway signed in another state, as Rhode Island's Route 114 does not enter Massachusetts.