Bay is a city in Craighead County, Arkansas, United States. The population was 1,800 at the 2000 census. It is included in the Jonesboro, Arkansas Metropolitan Statistical Area.
Bay is located at 35°44′43″N 90°33′46″W / 35.74528°N 90.56278°W / 35.74528; -90.56278 (35.745157, -90.562777).
According to the United States Census Bureau, the city has a total area of 3.3 square miles (8.7 km²), all of it land.