Sithu Min Oo (Burmese: စည်သူ မင်းဦး, pronounced [sìðù mɪ́ɰ̃ ʔú]; c. late 1310s – in or after 1370s) was a longtime pretender to the Pinya throne from the 1320s to the 1360s.
Sithu Min Oo was the elder of the two children of Princess Atula Maha Dhamma Dewi and Crown Prince Uzana I of Pinya.
The de facto heir apparent, according to the royal chronicles, was Uzana's half-brother Prince Kyawswa, who maintained his own army and conducted his own policy.
[2] Nor was Sithu viewed as a potential successor by his own father, who relied much more on the younger son Thihapate Min Htwe.
Swa Saw Ke, who became king of Ava 1367, gave his teenage daughter Minkhaung Medaw in a marriage alliance to Sithu.