101

101 may refer to:


 * 101 (number), the number
 * AD 101, a year in the 2nd century AD
 * 101 BC, a year in the 2nd century BC

It may also refer to:

Entertainment

 * 101 (album), a live album and documentary by Depeche Mode
 * "101" (song), a 1988 song and single by Sheena Easton
 * "101", a song on the Girl on Fire album by Alicia Keys
 * The 101 Network, former name of Audience, an American pay television channel

Transportation

 * List of highways numbered 101, several roads, including:
 * U.S. Route 101, often called "The 101"
 * 101 series, a commuter multiple unit train introduced in 1958 by Japan National Railways
 * TMK 101, a tramcar type which was used in Zagreb, Croatia, from 1951 until December 2008
 * McDonnell F-101 Voodoo fighter aircraft
 * McDonnell CF-101 Voodoo Canadian variant of the F-101
 * Fisher FP-101 kit aircraft
 * Zastava 101, a small family car based on the Fiat 128

Other uses

 * 101 (slang), a term used to indicate an introduction to a body of knowledge
 * 101st Airborne Division
 * Bell 101 modem a late 1950s communications modem
 * Bill 101 or Law 101, the Charter of the French Language in Québec
 * Police 101, the single non-emergency number used by all UK territorial police authorities
 * Romance 101, a South Korean manhwa series
 * Taipei 101, the tallest skyscraper in the world from 2004 to 2010
 * Mendelevium, chemical element with atomic number 101
 * 101 Dalmatians (disambiguation)
 * 101 Helena, a main-belt asteroid