Louisiana Highway 27 (LA 27) is a state highway located in southwestern Louisiana. It runs 132.42 miles (213.11 km) in a general north–south direction from LA 14 in Holmwood to the junction of U.S. Highways 171 and 190 in DeRidder. The route travels in a mirror-image of the letter "J" as it loops through the wetlands surrounding Calcasieu Lake and passes through Cameron, a small community situated on the Gulf of Mexico. It then extends northward through Sulphur en route to its terminus in DeRidder.