Intrusion (disambiguation)

An igneous intrusion is a form of geologic feature.

Intrusion may also refer to:


 * Saltwater intrusion, the movement of saline into freshwater aquifers
 * Intrusion (orthodontics), the movement of a tooth into bone
 * Intrusion, an object on a page which causes a textual runaround (typography)
 * Intrusion (play), an American play by Qurrat Ann Kadwani
 * Intrusion (film), a 2021 American psychological thriller
 * Intrusion (novel), a 2012 British sci-fi novel by Ken MacLeod