Sam S. F. Caligiuri is an American lawyer and former Connecticut State Senator. In 2010, he ran for the Republican nomination for U.S. Senate, but switched for a House seat in Connecticut's 5th congressional district. He was ultimately unsuccessful, losing behind Chris Murphy, 54-46%.

Connecticut's 5th congressional district is a congressional district in the U.S. state of Connecticut. Located in the western part of the state and spanning across parts of Fairfield, Litchfield, New Haven, and Hartford Counties, the district runs from Meriden and New Britain in central Connecticut, westward to Danbury and the surrounding Housatonic Valley, encompassing the Farmington Valley, Upper Naugatuck River Valley, and the Litchfield Hills. The district also includes most of Waterbury.