Commercial Boulevard is a 15.2-mile-long (24.5 km)[1] highway serving northern Broward County, Florida, mostly designated as State Road 870 (SR 870).

The road extends from its western terminus in Sunrise at SR 869, the Sawgrass Expressway, and serves as a major commercial route through Oakland Park, and Fort Lauderdale, intersecting Florida's Turnpike, U.S. Route 441 (US 441), Interstate 95 (I-95) and US 1 before reaching its eastern terminus at SR A1A (Ocean Boulevard) in Lauderdale-by-the-Sea, Florida.

The westernmost 2.7 miles (4.3 km) of Commercial Boulevard are designated, but not signed, as County Road 870 (CR 870).

The road heads east, with an interchange with the Turnpike, followed by an intersection with US 441.

It then enters Lauderdale-by-the-Sea and reaches its eastern terminus at an intersection with State Road A1A (Ocean Boulevard).