KS1 or KS-1 may refer to:

Weapons

KS-1 (missile) The KS-1 or Kaishan-1 (), military designation HQ-12 (; NATO reporting name: CH-SA-12) is the first Chinese surface-to-air missile to adopt a phased array radar. Development HQ-12 prototypes, known as the KS-1 before being incorporated into the P ...

, a Chinese surface-to-air missile *

Raduga KS-1 Komet The Raduga KS-1 Comet ( (Крылатый Снаряд: winged projectile), NATO reporting name: AS-1 Kennel) was a Soviet short range air-to-surface missile, primarily developed for anti-ship missions. It was carried on two aircraft, the Tupole ...

, a Soviet anti-ship missile *

KS-1 rifle The KS series of rifles are produced by Knight's Armament Company (KAC). They are designed as updated versions of their AR-based SR-16 rifles. The 13.7" KS-1 variant was adopted as the L403A1-AIW by the British Armed Forces in 2023 to supplement ...

, an assault rifle adopted by the

British Armed Forces The British Armed Forces are the unified military, military forces responsible for the defence of the United Kingdom, its British Overseas Territories, Overseas Territories and the Crown Dependencies. They also promote the UK's wider interests ...

Other uses

Kansas's 1st congressional district Kansas's 1st congressional district is a congressional district in the U.S. state of Kansas. Commonly known as "The Big First", the district encompasses all or part of 60 counties spanning more than half of the state, making it the seventh-larg ...

, to the United States House of Representatives * K-1 (Kansas highway), an American road *

Key Stage 1 Key Stage 1 is the legal term for the two years of schooling in maintained schools in England normally known as Year 1 and Year 2, when pupils are aged between 5 and 7. This Key Stage normally covers pupils during infant school, although in some ca ...

, a British primary educational term {{Letter-NumberCombDisambig