Loretto is a 6th-class city in Marion County, Kentucky, in the United States.
It is best known as the home of the Maker's Mark bourbon distillery.
The city takes its name from the Sisters of Loretto, a Catholic congregation founded in 1812 at nearby St. Mary's. The sisters themselves were named for Loreto in Italy, the site of the Basilica della Santa Casa which supposedly contains the original home of the Virgin Mary.
The sisters began a school at the site to educate the frontier children. By 1833, the community was large enough for its own post office. It was formally incorporated in 1866.
Loretto is located at 37°38′8″N 85°23′12″W (37.635576, -85.386601). According to the United States Census Bureau, the city has a total area of 3.5 square miles (9.1 km2), all land.