William Pope Duval (September 4, 1784 – March 19, 1854) was the first civilian governor of Florida Territory, succeeding Andrew Jackson who had been military governor. In his twelve-year governorship, from 1822 to 1834, he divided Florida into four territories, established the local court system, and chose Tallahassee as the territory's capital because of its central location. Duval County, where Jacksonville is located, Duval Street in Key West, and Duval Street in Tallahassee, Florida are named for him.