Nhã nhạc (Vietnamese: [ɲǎːˀ ɲàːk], , "elegant music") is a form of Vietnamese court music. Vietnamese court music is very diverse, but the term nhã nhạc refers specifically to the Vietnamese court music performed from the Trần dynasty of the 13th century to the Nguyễn dynasty at the end of the 20th century.
Vietnamese court music was performed at annual ceremonies, including anniversaries and religious holidays, as well as special events such as coronations, funerals or official receptions, by highly trained and skilled court musicians. Along with the musicians, a number of intricate court dances also exist (see Traditional Vietnamese dance). Both musicians and dancers wore elaborately designed costumes during their performances.
While the largest foreign influence on nhã nhạc came from the Ming dynasty court of China, later on there were also adapted a few elements from the music of Champa, which the Vietnamese court found intriguing.
Instruments commonly used for nhã nhạc include kèn bầu (conical oboe), đàn tỳ bà (pear-shaped lute with four strings), đàn nguyệt (moon-shaped two-string lute), đàn tam (fretless lute with snakeskin-covered body and three strings), đàn nhị (two-stringed vertical fiddle), sáo (also called sáo trúc; a bamboo transverse flute), trống (drum played with sticks), and other percussion instruments.