Grant Rosenberg (born 3 December 1952; age 72) is a television writer and producer who wrote the teleplay for the Star Trek: The Next Generation fifth season episode "New Ground". Between 1993 and 1994 he received credit as creator and executive producer on Time Trax. He is married to Star Trek: Voyager guest star Marjorie Monaghan.
Rosenberg wrote stories for episodes of MacGyver (1989 and 1991, starring Richard Dean Anderson), Pointman (1995, directed by Winrich Kolbe and with Mary Crosby), Baywatch (1995), Lois & Clark: The New Adventures of Superman (1994-1997, starring Teri Hatcher and K Callan), Poltergeist: The Legacy (1996-1999), The Outer Limits (1995-2002, narrated by Kevin Conway and guest starring Michael Dorn, Kaj-Erik Eriksen, Amanda Plummer and Wallace Langham), Tracker (2001-2002), Jeremiah (2002, created by J. Michael Straczynski), The Dead Zone (2003, starring Nicole de Boer and David Ogden Stiers and created by Shawn and Michael Piller), and Alien Tracker (2003).
He also worked as co-producer on Lois & Clark: The New Adventures of Superman (1995-1997), as co-executive producer/executive producer on Poltergeist: The Legacy (1996-1999), The Outer Limits (2000), alentine (film)|Valentine}} (2001), and Tracker (2001-2002) and Jeremiah (2003-2004), as consulting producer on Masters of Horror (2005-2006), and as supervising producer on Eureka (2007), Masters of Science Fiction (2007), and Fear Itself (2008-2009).
Rosenberg later worked as co-executive producer on The Listener (2011) and Lost Girl (2011-2012), as supervising producer on XIII: The Series (2011), and as writer on episodes of XIII: The Series (2011) and Lost Girl (2011-2012).