Piercing most commonly refers to body piercing.
It may also refer to:
Piercing (metalworking), a manufacturing process for cutting webs, sheet metal, and plates Piercing (novel) Piercing (film), a 2018 horror film "Piercing", a 2001 song by Katy Hudson (later known as Katy Perry)
See also Rotary piercing, a metalworking process for forming seamless tubes Piercing set, a concept in computational geometry