Lakin is a city in and the county seat of Kearny County, Kansas, United States. As of the 2010 census, the city population was 2,216.
The city of Lakin is named after David Long Lakin, former treasurer of the Atchison, Topeka and Santa Fe Railway.
Lakin is located at 37°56′25″N 101°15′31″W / 37.94028°N 101.25861°W / 37.94028; -101.25861 (37.940202, -101.258728). According to the United States Census Bureau, the city has a total area of 0.9 square miles (2.4 km²), all of it land.