Pi
Astronomical nomenclature
 Pi Canis Majoris, a star in the Beta Quadrant
 Pi³ Orionis, a star

Command codes
 "Barclay-pi-3", used to transfer controls to hologrid program
 "Janeway-pi-1-1-0", used to initiate/terminate self-destruct sequence and as a command override
 "Janeway-pi-alpha"
 "Pathway-pi-2", a computer pathway on a Borg cube
 "Tuvok-pi-alpha", a security override to enter another's quarters

Mathematics
 Pi (number), the mathematical term

Production reference
 Antares Pi IV, an unreferenced planet

See also
 Pi (starship), a Romulan scout ship
 PI, abbreviation and slang for a private investigator
 Pie, a typically delicious dessert

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