| "Deja Q" | |
|---|---|
| Star Trek: The Next Generation episode | |
| Episode no. | Season 3 Episode 13 |
| Directed by | Les Landau |
| Written by | Richard Danus |
| Featured music | Dennis McCarthy |
| Cinematography by | Marvin Rush |
| Production code | 161 |
| Original air date | February 5, 1990 |
| Guest appearances | |
| |
"Deja Q" is the 13th episode of the third season of the American science fiction television series Star Trek: The Next Generation, and the 61st episode of the series overall. This episode aired on syndicated television in February 1990.
In this episode, as the 24th-century crew of the starship Enterprise D struggles to prevent a moon from falling out of orbit, their situation is further complicated by a visit from a powerful nemesis named "Q" (John de Lancie), who informs them that he has been stripped of all his powers and must live out a mortal life.
The episode is noted for its comedy and exploration of humanity and morality.