thumb|right|Killona in the 1930s
Killona is a census-designated place (CDP) in St. Charles Parish, Louisiana, United States. The population was 724 in 2020. On December 14, 2022, the town was hit by a destructive and deadly EF2 tornado that damaged or destroyed numerous structures, killed one person, and injured eight others.
Geography
Killona is located at (29.999471, -90.487081).
According to the United States Census Bureau, the CDP has a total area of , of which is land and (9.13%) is water.