Hazen is a city in Prairie County, Arkansas, United States. The population was 1,481 at the 2020 census.

Prairie County is in the Central Arkansas region of the U.S. state of Arkansas. The county is named for the Grand Prairie, a subregion of the Arkansas Delta known for rice cultivation and aquaculture that runs through the county. Created as Arkansas's 54th county in 1846, Prairie County is home to four incorporated towns, including DeValls Bluff, the southern district county seat, and two incorporated cities, including Des Arc, the northern district county seat. The county is also the site of numerous unincorporated communities and ghost towns. Occupying 676 square miles (175,000 ha), Prairie County is the median-sized county in Arkansas. As of the 2020 Census, the county's population was 8,282. Based on population, the county is the ninth-smallest county of the 75 in Arkansas.