Look up 55 in Wiktionary, the free dictionary.
55 may refer to:
Science
- Caesium, by the element's atomic number
Astronomy
Transportation
- The highest speed limit allowed in the United States between 1974 and 1986 per the National Maximum Speed Law
- Highway 55, several roads
- Route 55 (disambiguation), bus and tram routes
Film
- 55 Days at Peking, a film starring Charlton Heston and David Niven
Other uses
- Gazeta 55, an Albanian newspaper
- Agitation and Propaganda against the State, also known as Constitution law 55, a law during Communist Albania
- +55, the code for international direct dial phone calls to Brazil
- 5:5, law enforcement code for handcuffs
- 55 (album), by the Knocks
- "55", a 2022 song by Raymix
- "55 (Hamsa oua Hamsine)", an instrumental by the Master Musicians of Joujouka from Brian Jones Presents the Pipes of Pan at Joujouka
- "Fifty Five", a song by Karma to Burn from the album Arch Stanton, 2014
- 55 Pandora, a main-belt asteroid