"Hippocratic Oath" is the 76th episode of the syndicated American science fiction television series Star Trek: Deep Space Nine. It is the fourth episode of the fourth season and is directed by castmember René Auberjonois (Constable Odo). Set in the 24th century, the series follows the adventures on Deep Space Nine, a space station located near a stable wormhole between the Alpha and Gamma quadrants of the Milky Way Galaxy.