Saw Lu Thinkhaya (Burmese: စောလူး သင်္ခယာ, pronounced [sɔ́ lú θɪ̀ɴkʰəjà]; c. 1370s–1435) was the ruler of Toungoo from 1420 to 1435. He was first appointed governor of the frontier vassal state by King Minkhaung I of Ava in 1420. Following the succession crises at Ava, Thinkhaya declared independence in 1426. He seized up to Yamethin in 1428–29, and in an alliance with King Binnya Ran I of Hanthawaddy Pegu attempted to pick off Prome (Pyay) in 1430–31. But after Ava and Pegu separately reached a truce, Thinkhaya retreated to his home region, and may have lost control of the Yamethin region by 1434. Less than a year after his death in 1435, Toungoo became a vassal of Hanthawaddy.