The second season of the American science fiction television series Fringe commenced airing on the Fox network on September 17, 2009, and concluded on May 20, 2010. The season was produced by Bad Robot in association with Warner Bros. Television, and its showrunners were Jeff Pinkner and J. H. Wyman. Actors Anna Torv, John Noble, and Joshua Jackson reprised their roles as FBI agent Olivia Dunham and father-son duo Walter and Peter Bishop, respectively. Previous series regulars Lance Reddick, Jasika Nicole, Blair Brown, and Kirk Acevedo also returned, though with Acevedo in a limited capacity.

Joel Howard "J. H." Wyman is a film and TV producer, screenwriter, director and musician. He is best known for his work on the Fox science fiction shows Fringe and Almost Human, and wrote and produced the films The Mexican (2001) and Dead Man Down (2013).