Oklahoma State Highway 73

State Highway 73
Route information
Maintained by ODOT
Length	24.5 mi (39.4 km)
Major junctions
West end	SH-34 north of Elk City
East end	I-40 BL in Clinton
Location
Country	United States
State	Oklahoma
Highway system
Oklahoma State Highway System Interstate US State Turnpikes
← SH-72 → SH-74

State Highway 73 (abbreviated SH-73 or OK-73) is a 24½ mi^[1] (39.4 km) state highway mostly in Custer Co., Oklahoma, although a stretch of about four-fifths of a mile (1.3 km) of its eastbound lane lies in Roger Mills Co. SH-73 has no lettered spur routes.