Denham Springs is a city in Livingston Parish, Louisiana, United States, and part of the Baton Rouge Metropolitan Statistical Area. The population was 9,913 at the 2009 census.

Denham Springs is located at 30° 28' 47"N 090° 57' 15"W / 30.47972; -90.95417.

According to the United States Census Bureau, the city has a total area of 6.1 square miles, of which, 6.0 square miles is land and the remaining 0.04 square miles (0.66%) is water.