S&T can refer to: Science and technology, the counterpart of R&D Shell and tube - type of heat exchanger Missouri University of Science and Technology, often shortened to "Missouri S&T" or simply "S&T" Signalling and Telecommunications or Signalling and Telegraphy in Railway signalling S&T Dynamics, machine-tools and auto parts manufacturer of South Korea Sky & Telescope, a magazine Strategy & Tactics, a magazine S&T (company), an IT company from Austria S&T Motors, the former name for KR Motors, a motorcycle manufacturer in South Korea Switching and terminal railroad Sales and Trading