Connelly is a hamlet in Ulster County, New York, United States.

The community is located on the east bank of Rondout Creek, opposite Kingston.

Connelly has a post office with ZIP code 12417, which opened on December 6, 1889.

[2][3] In 1888 the hamlet of Connelly established Hasbrouck Engine Company One on Center Street.

The Hamlet of Connelly's shores upon the Rondout Creek was called home by many marine basins over the years.