Kachin State (Kachin: Jingphaw Mungdaw) is the northernmost state of Myanmar. It is bordered by China to the north and east; Shan State to the south; and Sagaing Region and India to the west. It lies between north latitude 23° 27' and 28° 25' longitude 96° 0' and 98° 44'. The area of Kachin State is 89,041 km² (34,379 sq mi). The capital of the state is Myitkyina. Other important towns include Bhamo and Putao.

Kachin State has Myanmar's highest mountain, Hkakabo Razi (5,889 metres (19,321 ft)), forming the southern tip of the Himalayas, and a large inland lake, Indawgyi Lake.

Traditional Kachin society was based on shifting hill agriculture. According to "The Political Systems of Highland Burma: A Study of Kachin Social Structure", written by E. R. Leach, Kachin was not a lingusitic category. Political authority was based on chieftains who depended on support from immediate kinsmen. Considerable attention has been given by anthropologists of the Kachin custom of maternal cousin marriage, wherein it is permissible for a man to marry his mother's brother's daughter, but not with the father's sister's daughter. In pre-colonial times, the Kachin were animist.

The Burmese government under Aung San reached the Panglong Agreement with the Shan, Kachin, and Chin peoples on 12 February 1947. The agreement accepted "Full autonomy in internal administration for the Frontier Areas" in principle and envisioned the creation of a Kachin State by the Constituent Assembly. Kachin State was formed in 1948 out of the British Burma civil districts of Bhamo and Myitkyina, together with the larger northern district of Puta-o. The vast mountainous hinterlands are predominantly Kachin, whereas the more densely populated railway corridor and southern valleys are mostly Shan and Bamar. The northern frontier was not demarcated and until the 1960s Chinese governments had claimed the northern half of Kachin State as Chinese territory since the 18th century. Before the British rule, roughly 75% of all Kachin jadeite ended up in China, where it was prized much more highly than the local Chinese nephrite.

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