RATS may refer to:

  • RATS (software), Regression Analysis of Time Series, a statistical package
  • Rough Auditing Tool for Security, a computer program
  • Robot Astronomy Talk Show, an animated educational series that's part of NASA's IRrelevant Astronomy vodcast
  • R.A.T.S.(Robot Anti-Terror Squad) a 1980s toyline by Tomy
  • Regional Anti-Terrorist Structure, the Shanghai Cooperation Organisation's anti-terrorism branch
  • Radio Alert Transmission System