Louis Székely, known professionally as Louis C. K., is an American stand-up comedian, Emmy-winning television and film writer, actor, producer, and director from Boston, Massachusetts.
- Known For: Acting
- Birthday: 1967-09-12
- Place of Birth: Washington, District of Columbia, USA
- Also Known As: Louis CK, Louis Székely, Louis Szekely, Louis Székely Jr., Louis Szekely Jr., Louis C. K., 루이스 C.K., Луис С.К.