| Acronym | Meaning |
| VOA | Vibrational Optical Activity |
| VOA | Volatile Organic Analysis |
| VOA | Volatile Organic Aromatic Compounds |
| VOC | Viable Organism Count |
| VOC | Volatile Organic Compound(s) |
| VOD | Vacuum-oxygen Decarburization |
| VOD | Veno-occlusive Disease |
| VOF | Volatile Org. Fraction |
| VOF | Volume Of Fluid |
| VOFF | Valence Orbital Force Field |
| VOHAP | Volatile Organic Hazardous Air Pollutant |
| VOIE | Valence Orbital Ionization Energy |
| VOIP | Valence Orbital Ionization Potential |
| VOST | Volatile Organic Sampling Train |
| VOTE | Vortex Ozone Transport Experiment |
| VPA | Varied Portions Approach |
| VPAM | Variable Phase Amplitude Method (for Electron-atom Scattering) |
| VPC | Vapor-phase Chromatography |
| VPD | Vapor Phase Decomposition |
| VPD | Vapor Pressure Deficit |
| VPDB | Vienna Peedee Belemnite |
| VPE | Vapor-phase Epitaxy |
| VPEAD | Valence Photoelectron Angular Distribution |
| VPEEM | Valence Band Photoemission Electron Microscopy |
| VPM | Variable Phase Method (for Electron-atom Scattering Calcns.) |
| VPN | Virtual Private Network |
| VPO | Vapor Pressure Osmometry |
| VPS | Vacuum Plasma Spraying |
| VPSA | Vainshtein-Presnyakov-Sobelman Approxn. (for Excitation In Atom-ion Collisions) |
| VPSEM | Variable Pressure Scanning Electron Microscope |
| VPSSQM | Variable-phase Supersymmetric Quantum Mechanics |
| VPT | Variational Perturbation Theory |
| VQMC | Variational Quantum Monte Carlo |
| VQP | Variable Quadratic Propagator (in Quantum Calcns.) |
| VRDDO | Variable Retention Of Diatomic Differential Overlap |
| VRE | Vancomycin-resistant Enterococci |
| VREF | Vancomycin-resistant Enterococcus Faecium |
| VRIOSA | Vibrational/rotational Infinite-order Sudden Approximation |
| VRLA | Valve-regulated Lead-acid (batteries) |
| VRM | Viscous Remanent Magnetization |
| VRPA | Variational Random Phase Approxn. |
| VS | Volatile Solids |
| VSA | Vacuum Swing Adsorption |
| VSD | Virtually Safe Dose |
| VSEP | Vibratory Shear Enhanced Process |
| VSEPR | Valence-shell Electron-pair Repulsion |
| VSFG | Vibrational Sum-frequency Generation |
| VSFS | Vibrational Sum Frequency Spectroscopy |
| VSIP | Valence State Ionization Potential |
| VSM | Variable Screening Model (for Quasimols. And MO Correlation Diagrams) |