Unsub

Unsub may refer to:


 * Unsub (TV series), a 1989 television series starring David Soul as a forensic investigator
 * Unsub Records, an American record label
 * "Unknown subject" or "Unidentified subject of an investigation", jargon for person of interest used in some American TV crime shows
 * Unsub, an analytics service by OurResearch to help libraries cancel subscriptions