K1, K.I, K01, K 1 or K-1 can mean:

Military

• K1 main battle tank, a modern main battle tank of the South Korean military
• Daewoo K1
  Daewoo K1
  Daewoo Precision Industries K1/K1A assault carbine is the first modern firearm developed by Agency for Defense Development and manufactured by Daewoo Precision Industries, and entered service in Republic of Korea Armed Forces in 1981.-Development:...
  
  , a carbine of the South Korean army
• Fokker K.I
  Fokker K.I
  The Fokker M.9 , also known as the K.I , was a German experimental aircraft.First flown in 1915, the M.9 had two M.7 fuselages and tails, without engines, mounted on the lower wing. To this was added a central nacelle with two 80 hp Oberursel rotary engines, one at either end, in a centerline...
  
  , a World War I German experimental aircraft
• HMS Acanthus (K01) / HNoMS Andenes (K01), a 1939 British, then Norwegian, Royal Navy Flower class corvette
  Flower class corvette
  The Flower-class corvette was a class of 267 corvettes used during World War II, specifically with the Allied navies as anti-submarine convoy escorts during the Battle of the Atlantic...
  
  
• K 1, a designation for a Swedish cavalry regiment
• K1 class gunboat
  K1 class gunboat
  The K1 class was a type of gunboat designed by the Kriegsmarine before World War II. The class was to have comprised four ships, which had been ordered under the provisional names K1, K2, K3, and K4. The four ships were ordered in November 1938, and were scheduled to have been completed by early 1942...
  
  , planned World War II German gunboat

Geography

• K1, another name for Masherbrum
  Masherbrum
  Masherbrum is located in the Gilgit Baltistan of Pakistan. At it is the 22nd highest mountain in the world and the 9th highest in Pakistan. It was the first scaled and mapped peak in the Karakoram mountain range, hence its name....
  
  , a mountain in the Karakoram range in Pakistan
• K-1 (Kansas highway)
  K-1 (Kansas highway)
  K-1 is a state highway in the U.S. state of Kansas. Its southern terminus is at the Oklahoma border south of Buttermilk, where it continues as Oklahoma State Highway 34. Its northern terminus is at U.S. Route 160 and U.S. Route 183 south of Coldwater....
  
  , a state highway in Kansas
• K1, a small town to north of Kirkuk
  Kirkuk
  Kirkuk is a city in Iraq and the capital of Kirkuk Governorate.It is located in the Iraqi governorate of Kirkuk, north of the capital, Baghdad...
  
   city, Iraq

Names

• K1, an often used abbreviation of Keiichi Morisato
  Keiichi Morisato
  is the major character in the popular manga Oh My Goddess! and in the anime of the same name and is voiced by Masami Kikuchi. His name is often abbreviated as "K1" .- Description :...
  
  's or Keiichi Maebara's first name (In the Japanese language 1 is "ichi")

Mathematics

• denotes the first algebraic K-theory group of a ring .

Steam locomotives

• Furness Railway K1
  Furness Railway K1
  The Furness Railway 120 class or "Seagulls", were built a class of four 4-4-0 steam locomotives designed by W. F. Pettigrew and built by Sharp Stewart and Company of Glasgow for the Furness Railway in 1890....
  
  , a steam locomotive related to the Furness Railway K2
• GSR Class K1, a Great Southern Railway Irish steam locomotive
• LNER Thompson/Peppercorn Class K1
  LNER Thompson/Peppercorn Class K1
  The London and North Eastern Railway Class K1 is a type of 2-6-0 steam locomotive designed by Edward Thompson. Thompson preferred a simple two-cylinder design instead of Gresley's three cylinder one...
  
  , a 1949 British 2-6-0 (mogul) steam locomotive
• NCC Class K1, a Northern Counties Committee Irish steam locomotive
• PRR K1, an American PRR 4-6-2 steam locomotive
• SR K1 class, a British 2-6-0 steam locomotive
• the first 1909 TGR K Class
  TGR K Class
  -Further reading:* Belibin, Bruce and McKillop, Bob - K1 steams again Light Railways, Number 193 February 2007 pp. 3-7- External links :* http://www.whrsoc.org.uk/Projects/K1Loco.html* http://www.railtasmania.com/loco/garratts.htm...
  
   Garratt, a type of articulated steam locomotive

Other vehicles / transportation

• K1, a canoe racing
  Canoe racing
  This article discusses canoe sprint and canoe marathon, competitive forms of canoeing and kayaking on more or less flat water. Both sports are governed by the International Canoe Federation ....
  
   event under the International Canoe Federation
• K-1 Attack, a Slovak sports car
• K-1 Vehicle
  K-1 Vehicle
  The Kistler K-1 launch vehicle was to be a two-stage, fully reusable aerospace vehicle in commercial development by Rocketplane Kistler. It was designed to accommodate a wide range of missions, including payload delivery to low-earth orbit , payload delivery to high-energy orbits with a K-1 Active...
  
  , an aerospace vehicle under development by Rocketplane Kistler
• BMW K1
  BMW K1
  The BMW K1 is a motorcycle that was designed by BMW as a high-speed sports-tourer, designed to change the motorcycle media and buying public's mind of BMW as only a manufacturer of flat-twin tourers....
  
  , a sport bike
• London Buses route K1
  London Buses route K1
  London Buses route K1 is a Transport for London contracted bus route in London, United Kingdom. The service is currently contracted to London United.-History:...
  
  , a Transport for London contracted bus route
• Tatra K1
  Tatra K1
  The Tatra K1 was an experimental tramcar developed by ČKD Tatra between 1964 and 1965. Previous Tatra units had been concerned primarily with gaining maximum capacity in a single tramcar, and Tatra sought to correct this through the development of its first articulated tramcar, the result being...
  
  , a 1967 Czechoslovakian experimental tramcar
• USS K-1 (SS-32)
  USS K-1 (SS-32)
  USS K-1 was the lead ship of her class of submarine of the United States Navy.-Construction history:Her keel was laid down by the Fore River Shipbuilding Company in Quincy, Massachusetts, as Haddock, making her the first ship of the United States Navy to be named for the haddock, a small edible...
  
  , a 1913 United States Navy K class of submarine

Electronics

• K1 Magnetophon
  Magnetophon
  Magnetophon was the brand or model name of the pioneering reel-to-reel tape recorder developed by engineers of the German electronics company AEG in the 1930s, based on the magnetic tape invention by Fritz Pfleumer...
  
  , the first tape recorder, produced in Germany in 1935
• Motorola KRZR K1
  Motorola KRZR K1
  Motorola KRZR , known as the "Canary" before its release, is a series of clamshell/flip mobile phones by Motorola, and is one of the series in the 4LTR line. The first phone was released in September 2006....
  
  , a mobile phone
• Sendo K1, a mobile phone

United States forms

• K-1 visa
  K-1 visa
  A K-1 visa is a dual intent visa issued to the fiancé or fiancée of a United States citizen to enter the United States. A K-1 visa requires a foreigner to marry his or her U.S. citizen petitioner within 90 days of entry. Once the couple marries, the foreign citizen can adjust status to become a...
  
  , a United States immigration visa (also called the fiancé(e) visa)
• Schedule K-1, a tax form of the United States Internal Revenue Service (IRS) corresponding with Form 1065 to report one's share of income in a flow-through entity
  Flow-through entity
  A flow-through entity is a legal entity where income "flows through" to investors or owners; that is, the income of the entity is treated as the income of the investors or owners. Flow-through entities are also known as pass-through entities or fiscally-transparent entities...
  
  

Miscellaneous

• K1, a Larcum Kendall
  Larcum Kendall
  Larcum Kendall was a British watchmaker.-Commission:The Board of Longitude asked Kendall to copy and develop John Harrison's ingenious fourth model of a clock useful for navigation at sea...
  
   marine chronometer (1769)
• K-1
  K-1
  K-1 is a defunct world-wide kickboxing promotion based in Tokyo, Japan founded by Kazuyoshi Ishii, a formerKyokushin karate practitioner. K-1 combines stand up techniques from Muay Thai, Karate, Taekwondo, Savate, San Shou, kickboxing, western-style boxing, and other martial arts...
  
  , a type of kickboxing, martial arts, combat sport promoted by an organization of the same name
• K1, an alternative title for Kommune 1
  Kommune 1
  Kommune 1 or K1 was the first politically-motivated commune in Germany. It was created on January 12, 1967, in West Berlin and finally dissolved in November 1969....
  
  
• k1, a coefficient that encapsulates process-related factors, limiting the minimum feature size in photolithography
  Photolithography
  Photolithography is a process used in microfabrication to selectively remove parts of a thin film or the bulk of a substrate. It uses light to transfer a geometric pattern from a photomask to a light-sensitive chemical "photoresist", or simply "resist," on the substrate...
  
  
• K1 fund
  K1 fund
  The K1 fund was a British Virgin Islands based hedge fund, initially marketed to and invested in by mainly German-based private investors, and latterly a series of global banks. With an estimated size of $378million/£249million and $1Bn under management, it collapsed in 2008. It is estimated by...
  
  , a suspected German Ponzi-scheme
• an abbreviation for KotOR 1
  Star Wars: Knights of the Old Republic
  Star Wars: Knights of the Old Republic is a role-playing video game developed by BioWare and published by LucasArts. It was released for the Xbox on July 15, 2003, for Microsoft Windows on November 19, 2003, and on September 7, 2004 for Mac OS X. The Xbox version is playable on Xbox 360 with its...
  
  
• Kingz1 a music group created in 2003.

K. 1 can designate the works of two composers:

1. six works of Wolfgang Amadeus Mozart
   Wolfgang Amadeus Mozart
   Wolfgang Amadeus Mozart , baptismal name Johannes Chrysostomus Wolfgangus Theophilus Mozart , was a prolific and influential composer of the Classical era. He composed over 600 works, many acknowledged as pinnacles of symphonic, concertante, chamber, piano, operatic, and choral music...
   
    in the original Köchel Verzeichnis. They appear in manuscript in the Nannerl Notenbuch
   Nannerl Notenbuch
   The Nannerl Notenbuch, or Notenbuch für Nannerl is a book in which Leopold Mozart, from 1759 to about 1764, wrote pieces for his daughter, Maria Anna Mozart , to learn and play. His son Wolfgang also used the book, in which his earliest compositions were recorded...
   
   . Despite being composed in Salzburg
   Salzburg
   -Population development:In 1935, the population significantly increased when Salzburg absorbed adjacent municipalities. After World War II, numerous refugees found a new home in the city. New residential space was created for American soldiers of the postwar Occupation, and could be used for...
   
    between February 1761 and January 1762, they are now considered separate pieces.
2. a keyboard sonata by Domenico Scarlatti
   Domenico Scarlatti
   Giuseppe Domenico Scarlatti was an Italian composer who spent much of his life in the service of the Portuguese and Spanish royal families. He is classified as a Baroque composer chronologically, although his music was influential in the development of the Classical style...
   
   .

Mozart

1. K. 1a, an Andante in C for Keyboard
2. K. 1b, an Allegro in C for Keyboard
3. K. 1c, an Allegro in F for Keyboard
4. K. 1d, a Minuet in F for Keyboard
5. K. 1e, a Minuet in G for Keyboard
6. K. 1f, a Minuet in C for Keyboard

In the first edition of the Köchel Verzeichnis K. 1 referred only to the two minuets in G and C, now designated as K. 1e and K. 1f.

Scarlatti

The Kirkpatrick numbers for Scarlatti's works are sometimes written with a 'K', sometimes with a 'Kk':

• K. 1', a Sonata for keyboard