I5, I-5 or I 5 may refer to:

Computing

  • Intel Core i5, a brand of microprocessors
  • i5, an IBM AS/400 line of minicomputers
  • i5/OS, previous name of the IBM i operating system

Military

  • , a 1931 Junsen type submarine
  • Polikarpov I-5, a Soviet fighter biplane of the 1930s
  • I 5, a Swedish regimental designation (5th Infantry Regiment) that has been used by the following units:
  • 2nd Life Grenadier Regiment (1816–1927)
  • Jämtland Ranger Regiment (1928–1974, 1990–1994, 2000–2004)

Transportation

  • Interstate 5 (I-5), a US highway
  • Inline-five engine, or straight-five engine
  • AirAsia India (IATA code)
  • General Electric I-5, the "industrial" model of GE's Elec-Trak electric tractor
  • The electric version of the BMW 5 series, BMW i5

Other uses

  • I5 (girl group), American band in 2000-2001
  • Inferior Five, fictional superhero group from DC Comics

See also

  • iPhone 5, an Apple smartphone
  • 5I (disambiguation)