Birthright (Stargate SG-1)

"Birthright" is the 10th episode from the seventh season military science fiction adventure television show Stargate SG-1. The 142nd episode overall, "Birthright" was first broadcast on the Sci-fi Channel in the United States on August 15, 2003. The episode was written by Christopher Judge, who is best known as the character Teal'c on the show. Peter Woeste directed the episode.

In the episode, SG-1 encounters a group of Jaffa called the Hak'tyl. The team learns from the group's leader, Ishta (Jolene Blalock), that since the Goa'uld system lord Moloc declared that all newborn female Jaffa in his domain be sacrificed, the Hak'tyl have been secretly saving as many as they can. As the resistance depends on the increasingly-difficult-to-acquire Goa'uld symbiotes, SG-1 believe a drug called Tretonin can abate them.

This is the third of four episodes of Stargate SG-1 written by Christopher Judge and incorporates elements of the Amazons from Greek mythology, as well as looking at sexism and femicide within the fictional Jaffa and Goa'uld races. A sequel episode called "Sacrifices", also written by Judge, features as part of season 8.