Louisville & Nashville 152 is a preserved K-2a class 4-6-2 "Pacific" type steam locomotive listed on the National Register of Historic Places, currently homed at the Kentucky Railway Museum at New Haven, Kentucky in southernmost Nelson County, Kentucky. It is the oldest known remaining 4-6-2 "Pacific" type locomotive to exist. It is also the "Official State Locomotive of Kentucky", designated as such on March 6, 2000. The locomotive is currently owned and being restored back to operating condition by the Kentucky Railway Museum.