The 1948 United States presidential election in Connecticut took place on November 2, 1948, as part of the 1948 United States presidential election. State voters chose eight electors to the Electoral College, which selected the president and vice president.
Connecticut was won by Republican candidate New York governor Thomas E. Dewey over Democratic candidate, incumbent President Harry S. Truman.
Dewey won the state by a narrow margin of 1.64%.