PQ1
PQ1 or variation, may refer to:

 Convoy PQ 1, WWII Allied Arctic Convoy
 Persona Q: Shadow of the Labyrinth, a 2014 video game
 Police Quest: In Pursuit of the Death Angel, 1987 video game
 PQ: Practical Intelligence Quotient, a 2005 video game
 PQ1, a rating used for the UK Royal Mail in Address Point

See also
 PQ (disambiguation)
 PQI (disambiguation)
 PQL (disambiguation)