Naungdawgyi (Burmese: နောင်တော်ကြီး [nàʊɴdɔ̀dʑí]; 10 August 1734 – 28 November 1763) was king of Konbaung Dynasty of Burma (Myanmar) from 1760 to 1763. He was a top military commander in his father Alaungpaya's reunification campaigns of the country. As king, he spent much of his short reign suppressing multiple rebellions across the newly founded kingdom from Ava (Inwa) and Toungoo (Taungoo) to Martaban (Mottama) and Chiang Mai. The king suddenly died less than a year after he had successfully suppressed the rebellions. He was succeeded by his younger brother Hsinbyushin.

Naungdawgyi was born Maung Lauk (မောင်လောက် ) to Yun San and Aung Zeya (later King Alaungpaya) on 10 August 1734 (Tuesday, 11th waxing of Wagaung 1096 ME) in a small village of Moksobo, about 60 miles northwest of Ava (Inwa). He was the eldest child of the couple's nine children. In 1736, his father became the chief of Moksobo, and the deputy chief of the Mu valley, their home region.

Lauk grew up during the period in which the royal authority of the king at Ava had largely dissipated across the kingdom. He watched helplessly as the Meiteis ransack his home region year after year, and could not understand why the king could not prevent these repeated raids. Their sense of helplessness only deepened in 1740, the Mon of Lower Burma broke away, and founded the Restored Hanthawaddy Kingdom centered in Pegu (Bago). Throughout his teens, Lauk and his fellow Upper Burmans watched how Pegu was increasingly winning the war against Ava.

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