Photo: License: Public Domain

400 West Market is a skyscraper in Downtown Louisville, Kentucky. The 35-story, 549-foot (167 m) high structure was Kentucky's tallest building when built for $100 million in 1991.

The building is constructed of reinforced concrete, as opposed to the steel construction usual for buildings of its height. A distinctive feature of the building is the 80-foot (24 m) high Romanesque dome which reflects the building's original name of Capital Holding that is illuminated from the interior at night. The upper floors of the building are also illuminated at night.

The skyscraper has 633,650 square feet (58,868 m²) of leaseable space for office and 18,787 square feet (1,745 m²) for retail.