TIMS is a four-letter combination that may refer to:

• Telecommunication Instructional Modeling System, aka Emona TIMS, an electronic device for telecommunications training
• The International Molinological Society
• Thermal ionization mass spectrometry
• Thermal infrared multispectral scanner; see Thermal infrared spectroscopy
• The Institute of Management Sciences
• Theoretical Intermarket Margin System a risk-based margin methodology used by the Options Clearing Corporation

See also

• Timberland (company), whose boots are known as Tims
• Tim Hortons, a chain of coffeeshops in Canada