Killen (surname)
Killen is a surname. Notable people with the surname include:
- Chris Killen , New Zealand professional footballer
- Edgar Ray Killen, American criminal
- Frank Killen, American baseball pitcher
- Gerard Killen, British politician
- James Killen, Australian politician
- John Sidney Killen, American farmer and state legislator
- Louisa Jo Killen, born Louis Killen, English folk singer
- William Dool Killen, Irish Presbyterian minister and church historian
- William M. Killen,, American politician
- William Wilson Killen , Australian politician
