Kiln is a census-designated place (CDP) in Hancock County, Mississippi, United States. It is part of the Gulfport–Biloxi, Mississippi Metropolitan Statistical Area. The population was 2,040 at the 2000 census.
Kiln is located at 30°24′46″N 89°26′8″W / 30.41278°N 89.43556°W / 30.41278; -89.43556 (30.412874, -89.435417).
According to the United States Census Bureau, the CDP has a total area of 13.5 square miles (34.9 km²), of which, 13.3 square miles (34.5 km²) of it is land and 0.1 square miles (0.3 km²) of it (0.97%) is water.