Meridian Street is the primary north-south street in Indianapolis, Indiana, United States.
US 31 formerly ran along North Meridian Street for much of its length in the city of Indianapolis, before being re-routed to a segment of Interstate 465. Meridian Street serves as the axis separating east addresses from west addresses, and intersects Monument Circle and Washington Street in downtown. North of downtown, Meridian continues through several prominent city neighborhoods, such as the Midtown commercial district, the Old Northside, Herron-Morton, Butler–Tarkington, Meridian-Kessler, and Arden, as well as the towns of Meridian Hills and Williams Creek.
Meridian Street also passes through several historic districts: the North Meridian Street Historic District, the Old Northside Historic District, the Shortridge–Meridian Street Apartments Historic District, the Washington Street–Monument Circle Historic District, and the Indianapolis Union Station-Wholesale District.