State Road 693 (SR 693) is a 11.6-mile-long (18.7 km) north–south street serving southern Pinellas County, Florida. Locally known as 66th Street, Pasadena Avenue, and A19A, the southern terminus is an intersection with Blind Pass Road and Gulf Way (SR 699) in St. Pete Beach, near the southern end of the Corey Causeway; the northern terminus is an intersection with U.S. Route 19 (US 19 and SR 55) within the Largo city limits (US 19-SR 55 continues northward on 66th Street).