5V or 5-V may refer to:

• 5V, IATA code for Lviv Airlines
• 5v, abbreviations for 5 volts
• 5V, abbreviation for 5-valve engine
• ZIS-5V, a model of ZIS-5 (truck)
• 5V, a model of Toyota V engine
• 5V, a model series for Intel 80386
• 5V chess; see Minishogi
• R-5V; see R-5 Pobeda, used in Sounding rocket X-ray astronomy

See also

• V5 (disambiguation)