Route 184 is a state highway in southeastern Connecticut, running from Groton to North Stonington.

The road continues east northeast towards the village of Center Groton, where it meets Route 117.

The establishment of this road completed a continuous turnpike route from Providence, Rhode Island to New London.

The turnpike corporation was dissolved in 1853, one year after opening continuous rail service from New York City to Boston via Providence.

[2] The route from the borough of Groton to the town center of North Stonington was designated as State Highway 331 in 1922.