Loop 111 is a 4.219-mile (6.790 km) state-maintained roadway located in Austin, Texas.

This section of road was redesignated as US 183 on June 10, 1966, causing Loop 111 to move to its current location along Airport Boulevard.

Contributing to the name is the northern end at Lamar is the site of the University Airport which closed around 1949.

[3] Loop 111 is a four- and six-lane urban roadway running just east of the Austin central business district.

Loop 111 proceeds north along Airport Boulevard for 4.2 miles (6.8 km) to its northern end at an intersection with FM 969.