Obsessive–compulsive personality disorder
Obsessive–compulsive personality disorder (OCPD) is a personality disorder marked by a spectrum of obsessions with rules, lists, schedules, and order, among other things. Symptoms are usually present by the time a person reaches adulthood, and are visible in a variety of situations.
Source: Wikipedia — Obsessive–compulsive personality disorder (CC BY-SA 4.0)