Dean Hargrove is an American television producer, writer, and director. He specializes in creating mystery series. He frequently works with television producer Fred Silverman and television writer Joel Steiger.

Hargrove received an Emmy nomination in his early 20s as a writer for a short-lived NBC series with Bob Newhart.

He became a writer for The Man From U.N.C.L.E. late in the show's first season (1964). His biggest involvement with UNCLE was in the second season where he wrote episodes such as the two-part "The Alexander the Greater Affair", which later became the film One Spy too Many. He did not work on the third season of UNCLE and wrote just one two-part episode of the short-lived fourth season.

After U.N.C.L.E., he worked at Universal Studios' television section, working on shows like It Takes a Thief, The Name of the Game and Columbo. He scripted the second Columbo pilot, "Ransom for a Dead Man", and was producer for the second, third and fourth seasons. More recently, he has worked for Viacom and produced shows which include Matlock, Jake and the Fatman and Diagnosis: Murder.