Bandon is a city in Coos County, Oregon, United States, on the south side of the mouth of the Coquille River. It was named by George Bennet, an Irish peer, who settled nearby in 1873 and named the town after Bandon in Ireland, his hometown. The population was 3,066 at the 2010 census and by the 2020 census 3,321.

Coos County is one of the 36 counties in the U.S. state of Oregon. As of the 2020 census, the population was 64,929. The county seat is Coquille. The county was formed from the western parts of Umpqua and Jackson counties. It is named after a tribe of Native Americans who live in the region. Coos County comprises the Coos Bay, OR Micropolitan Statistical Area.