The fourth season of 30 Rock, an American television comedy series, consists of 23 episodes and began airing on October 15, 2009, on the National Broadcasting Company (NBC) network in the United States. The season was produced by Broadway Video, Little Stranger, and NBC Universal; the executive producers were series creator Tina Fey, Lorne Michaels, Marci Klein, David Miner, and Robert Carlock.
