Connecticut's 140th House district is one of 151 Connecticut House of Representatives districts. It is currently represented by Travis Simms. The district consists of the central part of the city of Norwalk.
Prior to redistricting in 1972, Otha Brown Jr. represented the 148th District and John Fabrizio represented the 147th. The redistricting formed the 140th from the old 148th, 147th and part of the 145th District. This forced a contest between the two incumbents. Brown was defeated by Fabrizio in the November 1972 election.