Shrink (Experiment 001), an experiment from Lilo & Stitch

Shrink, a Yu-Gi-Oh card, recently printed in the TCG as a Shonen Jump Championship promo

Shrink (mathematics), one type of transformation in which the size or amount is reduced, for example (x/3, y/3)

Shrink, the sixth book in the Special X series by Michael Slade, also known as Primal Scream

Shrinkage (accounting), a retail term for the money lost by undercharged, damaged, or stolen goods

Shrink (album), the fourth album by German indie rock/electronica group The Notwist

"Shrink", a slang term for a mental health professional such as a psychiatrist or psychologist (derived from the word "headshrinker")