Greensburg is a city in and the county seat of Kiowa County, Kansas, United States. As of the 2010 census, the city population was 777.
In the evening of May 4, 2007, Greensburg was devastated by an EF5 tornado that traveled rapidly through the area, leveling at least 95 percent of the city and killing eleven people between the ages of 46 and 84.
Greensburg is also home to the world's largest hand-dug well.
Greensburg is located at 37°36′16″N 99°17′37″W (37.604316, -99.293488). According to the United States Census Bureau, the city has a total area of 1.48 square miles (3.83 km2), all land.