It originated as a habitational surname from Kersey, Suffolk. Other spellings of the surname include Kearsey, Keresey, and Kiersey. The variant spelling Carsey may also be found in the United States. The 2011 United Kingdom census found 911 people with this surname. Notable people with the surname include:Clyde Kersey, American politician
Eda Kersey (1904–1944), British violinist
Graham Kersey (1971–1997), English cricketer
Text adapted from Wikipedia, CC BY-SA 4.0.