Laborers' International Union of North America is an American and Canadian labor union.
LiUNA or LiUNA! may also refer to many NASCAR races: The LiUNA!, a NASCAR Xfinity Series race at Las Vegas Motor Speedway. LiUNA! 150, a race in the NASCAR Craftsman Truck Series at Lime Rock Park. LiUNA! 150 (ARCA) a combination race between the ARCA Menards Series and ARCA Menards Series East that takes place at Lucas Oil Raceway Park. LiUNA! 175, a race in the NASCAR Craftsman Truck Series that took place at the Milwaukee Mile.