'''VTI''' may refer to:
* Virtual TI (Virtual Texas Instruments Calculator) * The Vanguard Group Total Stock Market ETF, an exchange-traded fund with ticker symbol VTI * Velocity time integral, a measurement in echocardiography * Vermeer Technologies, original developer of Microsoft FrontPage * Volda TI, Norwegian sports club * VTI trademark by VLSI Technology * Video Terminal Interface (VTI), a video display interface of the polymorphic Poly-88 * Virtual Tunnel Interface, another method for route-based IPsec; see VyOS * VTI Engine ("Variable valve lift and Timing Injection"), engine developed by PSA Peugeot Citroën and BMW * Swedish National Road and Transport Research Institute, a transport research institute in Sweden
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