Sein Bo Tint (Burmese: စိန်ဗိုလ်တင့်) was a renowned Burmese hsaing waing musician, best known for his virtuosity in playing the pat waing, a Burmese drum circle, his compositions, and the introduction of innovations in traditional Burmese music.^[1] He was a favourite musician of Ne Win.^[1]

He was born Maung Tint in 1938, in Kyaiklat, British Burma, as the fifth of ten children.^[1] His father, Bo Kay Ohn, was a pat waing musician.^[1] He also learned to play the pattala, mandolin, flute, and hne as a child.^[1] During his childhood, he garnered the attention of Aung San, earning the honorific "Bo."

After leaving school at the age of 14, Tint became a full-time musician, whose performances were broadcast nationwide.^[1] He later earned the honorific "Sein" (lit. 'diamond') after he was elevated as a master musician.^[1] During his career, he introduced innovations to traditional Burmese music. He enlarged the hsaing waing ensemble, and created a new standard design for the ensemble, positioned within an intricately carved frame.^[1] He also expanded the kyi waing to 29 gongs, to accommodate the gap between Burmese and western tonalities.^[1]

He died from lung cancer on 23 August 1994 at Yangon General Hospital, survived by his wife San Pwint and seven children.^[1][2]

A bronze bust of Sein Bo Tint was completed in 2017 and placed in his hometown of Kyaiklat on 29 September.^[3]

On 17 April 2022, he was posthumously granted the Alinkar Kyawswa title.^[4]