SAS

(Britain, Australia, New Zealand, military) Initialism of Special Air Service; an elite unit of the British army. Similar units operate in the Australian and New Zealand armies.

(Scandinavia) Initialism of Scandinavian Airlines System; a joint Swedish, Norwegian and Danish airline company.

(computing) Initialism of Serial Attached SCSI, a computer bus standard for mainly connecting hard drives, but also used for other devices, derived from the SCSI and SATA standards.

(sports) Initialism of San Antonio Spurs, American basketball club.