900 (disambiguation)

900 may refer to:

Numbers

 * 900 (number), a number in the 900s range
 * 900 telephone number, an area code in North America reserved for additional charge calling

Time

 * AD 900, a year in the first millennium of the Common Era
 * 900 BC, a year in the first millennium Before Common Era
 * 900s (decade) AD, a decade in the first millennium of the Common Era
 * 900s BC (decade), a decade in the first millennium Before Common Era
 * 900s (century) AD, a century in the first millennium of the Common Era
 * 900s BC (century), a century in the first millennium Before Common Era
 * 9/00, September 2000
 * 9/00, September 1900

Places

 * 900 Rosalinde (1918 EC), a main-belt asteroid, the 900th asteroid registered
 * Căile Ferate Române Line 900, the 900 line operated by Căile Ferate Române, a rail line in Romania

Legislation

 * Decree 900, Guatemalan land reform law of 1952
 * H.R. 900, the Puerto Rico Democracy Act, a federal bill in the United States, 2007

Military

 * Ships with pennant number 900
 * HNLMS Mercuur, a Royal Netherlands Navy submarine support ship
 * USS LST-900, a WWII U.S. Navy tank landingship

Products

 * Astra Model 900, a semiautomatic pistol
 * Commodore 900, a microcomputer

Vehicles

 * Bréguet 900 Louisette, a sailplane
 * GMT900, a General Motors full-size pickup truck
 * GS&WR Class 900, a locomotive class
 * MD 900, a model of helicopter from McDonnell Douglas Helicopters
 * Saab 900, a mid-sized automobile
 * Fiat 900T, also known as the Fiat 900e and Zastava 900, a van
 * South Australian Railways 900 class, a locomotive class

Other uses

 * 900MHz (33cm), a UHF band
 * UMTS 900, a frequency band for cellular telephony
 * 900 AM (900kHz; 333m), a radio station frequency
 * 900 (skateboarding), a 900° spin, also found in skiing and snowboarding
 * 900 mm gauge railways