VTG or Vtg may refer to:

• Vitellogenin (VTG) a type of protein
• Variable turbine geometry, in variable-geometry turbochargers
• Airline code for Aviação Transportes Aéreos e Cargas, Angola
• Virtual tributary group, in synchronous optical networking
• An airport code for Vung Tau Airport, Vietnam
• Victoria Tower Gardens, a park in London

• VTG-32, a type of video timer produced by FOR-A
• VT Group, a privately held United States defense and services company