Assa Abloy AB is a Swedish conglomerate whose offerings include physical access control (PACS) products and services related to locks, doors, gates, and entrance automation. Related products and services include controlling access and confirming identities with keys, smart cards, tags, mobile, and biometric identity verification systems.

The company was formed in 1994, when Assa AB was separated from Swedish security firm Securitas AB. Shortly thereafter, Assa AB merged with the Finnish high security lock manufacturer Abloy Oy (based in Joensuu, a subsidiary of the Finnish company Wärtsilä). The company was introduced to the Stockholm Stock Exchange later the same year. Assa Abloy has since made over 200 acquisitions including Yale lock, Chubb Locks, Medeco in the United States, Mul-T-Lock in Israel and Fichet-Bauche in France. Its two largest shareholders are Latour and Melker Schörling AB.