What does MATT stand for?

Mapping Analysis Tools for Transportation - Military technology (DDF)

Matthews Studio Equipment Group - NASDAQ symbol (NQ)

Missile ASW - Antisubmarine Warfare Torpedo Target (MCD)

Mobile Acoustic Torpedo Target (NG)

Multi-Mission Advanced Tactical Terminal - Military technology (DDF)

Matthew - New Testament book

Mess Attendant - U.S. Navy enlisted rating (AUER)