State Route 73, also known as SR-73, is a numbered state highway in Alabama. The route runs 11.219 miles (18.055 km) from SR-71 in Higdon north to the Tennessee border, where it becomes State Route 377 (SR-377). SR-73 passes through rural areas in eastern Jackson County, serving the community of Bryant. The SR-73 designation was first used for present-day CR-29 between Piedmont in Calhoun County and Forney in Cherokee County, existing in the 1930s and 1940s.