Jeff Lindsay, born Jeffry P. Freundlich on July 14, 1952, is a renowned American playwright and crime novelist. He is best known for his series of novels featuring Dexter Morgan, a fictional psychopathic Miami police forensic analyst who also acts as a vigilante serial killer-killer. This series was adapted into the successful television series Dexter on Showtime, which aired from 2006 to 2013, starring Michael C. Hall.

Jeff Lindsay resides in Florida with his wife, author Hilary Hemingway, who is the daughter of Leicester Hemingway, Ernest Hemingway's brother. Lindsay's educational background includes a degree from Middlebury College, Vermont, in 1975, and a double MFA in Directing and Playwriting from Carnegie-Mellon University. In addition to writing, he has worked in various roles including musician, singer, comedian, actor, TV host, improv actor, and even dishwasher.

Lindsay has penned numerous plays, with 25 of them having been produced. Some of his earlier works were co-authored with his wife.