State Highway 84 (SH-84) is a short state highway in Okfuskee and Hughes Counties in Oklahoma. It begins at State Highway 9 in Dustin and runs northwest to end at U.S. Highway 75 near Weleetka. It passes through Hughes County for 1.34 miles (2.16 km) and Okfuskee County for 8.51 miles (13.70 km), for a total length of 9.85 miles (15.85 km). It has no lettered spur routes.