305 (disambiguation)
305 may refer to:
- 305 (number)
 - 305 AD, a year
 - 305 BC, a year
 
Electronics and machines
- IBM 305 RAMAC, the first commercial computer to use a hard disk drive
 - Lenovo IdeaPad 305, a brand of small business professional notebook computers
 - Nokia Asha 305, a Full Touch phone
 
Entertainment
Film
- 305 (film), a 2008 mockumentary about a group of semi-courageous Spartans
 
Music
- Mr. 305, nickname for the rapper Pitbull 
- Mr. 305 Inc., a record label company
 - Welcome to the 305, an album by Pitbull
 
 - "305," a song from singer Shawn Mendes's fourth album, Wonder.
 
Rides
- Project 305, a roller coaster at Kings Dominion theme park
 
Sports
- The 305 MVP, nickname for the wrestler Montel Vontavious Porter (MVP)
 
Literacy
- Lectionary 305, a Greek manuscript
 - Minuscule 305, a Greek manuscript
 
Military
Military units
- 305th Division (disambiguation), several units
 - 305 Squadron (disambiguation), several units
 - 305th Infantry Brigade (United Kingdom)
 
United States
- 305th Air Mobility Wing
 - 305th Military Intelligence Battalion (United States)
 - 305th Cavalry Regiment (United States)
 - 305th Operations Group
 
Military vehicles
- German submarine U-305, a Type-VIIC U-boat
 
United States
- USS Skate (SS-305), a Balao-class submarine
 - USS Spectacle (AM-305), an Admirable-class minesweeper
 - USS Thompson (DD-305), a Clemson-class destroyer
 
Places
- 305 Jefferson Street
 - Area code 305, area code for Miami
 - Salina USD 305, a school district in Kansas
 
Science and technology
Astronomy
- 305 Gordonia, an asteroid
 - 3C 305, a radio galaxy in Draco
 - Hill 305, a land feature on the Moon
 - Kosmos 305, a Soviet unmanned space mission attempt
 - NGC 305, an asterism in Pisces
 
Technology
Transportation
Automobiles
- Peugeot 305, a French compact car lineup
 
Engines
- GM 305 V8, a small block engine
 
Helicopter
- Brantly 305, an American light helicopter
 
Roads and routes
Trains
- 305 series, a Japanese train type
 - British Rail Class 305, a British train type