St.Bernard is a Roman Catholic church in Rockville, Connecticut, part of the Diocese of Norwich.

In 1848, 15 Catholic residents of Rockville met in a house owned by the Paper Mill Company to celebrate the first Mass.

Shortly thereafter the chapel in the basement was dedicated and used for Mass and other services until the upper church was completed.

The parish convent was designed by the firm of Whiton & McMahon of Hartford, Connecticut.

All three buildings are listed as significant contributing properties of the City of Rockville Historic District.