David Isaacs is an American television writer. He has written episodes of M*A*S*H, Cheers, its spin-off Frasier, and The Simpsons with Ken Levine.
Isaacs became a consulting producer and writer for the AMC television drama Mad Men for the show's second season. He was nominated for the Writers Guild of America Award for Best Dramatic Series at the February 2009 ceremony for his work on the second season.