414 may refer to:

• 414 (number)

Dates

• 414 CE (CDXIV), a year in the Western calendar, "A.D. 414"
• 414 BC, a year in the Western calendar, "414 BCE"

Places

• 414 Liriope (asteroid 414), main belt asteroid
• Route 414, see List of highways numbered 414
• Area code 414
• 414 (Mexico City Metrobús), a BRT station in Mexico City

Computing

• The 414s, a group of hackers
• HTTP 414, WWW status code

Aviation

• Cessna 414 Chancellor, a pressurized light-twin-prop sub-10 passenger plane.
• Breguet 414, interwar bomber of France