Kathryn Hays (born July 26, 1933) is an American actress. She was born in Princeton, Illinois but grew up in Joliet, Illinois.

An actress who played bit parts in many sitcoms and dramas throughout the 1960s and into the 1970s, she is most famous for her role as Kimberly Sullivan on As the World Turns. Hays has been on the soap opera since her debut in 1972. Long-known for her pixie-length brown hairdo, Hays has, in recent years, stopped dyeing it, opting for her natural hair color of gray.

A woman of ill repute in her earlier days, she reformed due to true love with Dan Stewart (played by John Colenback ). Now, Kim is married to Dr. Bob Hughes (Don Hastings) and is the manager of the television station in Oakdale, WOAK. Kim married many times, so that her full married name on the program is Kimberly Sullivan Reynolds Dixon Stewart Andropoulos Hughes.

In the 1968 Star Trek series, she appeared in "The Empath" portaying an alien capable of assuming the pain and the injuries of others, and thereby healing them. She played the role without any words convincingly. It was as memorable a cameo role as Joan Collins' or Mariette Hartley's roles of the original Star Trek series.

Hays has had three failed marriages, most notably wed to actor Glenn Ford.