K1A

K1A may refer to:


 * Haplogroup L-M20, also called haplogroup K1a
 * GSR Class K1a, a type of a steam locomotive
 * K1A, an variant of Daewoo Precision Industries K1
 * K1A, a postal code assigned to Government of Canada; see List of postal codes of Canada: K
 * Line K1A, in Chengdu BRT
 * Haplogroup K1a, a branch of subclade K1 in Haplogroup K (mtDNA)