State Highway 88 (SH 88) is a state highway located within the Denver Metropolitan Area in the U.S. state of Colorado. Spanning 19.171 miles (30.853 km), the highway travels through the City and County of Denver and Arapahoe County. SH 88 begins at Colfax Avenue in Denver and heads south along Federal Boulevard until it reaches Belleview Avenue, where it continues east until it reaches Interstate 25 in the Denver Tech Center. It then continues along Arapahoe Road until it reaches eastern terminus at SH 83 in Aurora.

Arapahoe County is a county located in the U.S. state of Colorado. As of the 2020 census, its population was 655,070, making it the third-most populous county in Colorado. The county seat is Littleton, and the most populous city is Aurora. The county was named for the Arapaho Native American tribe, who once lived in the region.