Year 1769 (MDCCLXIX) was a common year starting on Sunday (link will display the full calendar) of the Gregorian calendar and a common year starting on Thursday of the 11-day earlier Julian calendar.

Johann Adolph Hasse (baptised 25 March 1699 in Bergedorf, Germany – 16 December 1783 in Venice) was an 18th-century German composer, singer and teacher of music. Immensely popular in his time, Hasse was best known for his prolific operatic output, though he also composed a considerable quantity of sacred music. Married to soprano Faustina Bordoni and a great friend of librettist Pietro Metastasio, whose libretti he frequently set, Hasse was a pivotal figure in the development of opera seria and 18th-century music.

Hasse was born in Bergedorf, near Hamburg.

Hasse's career began in singing, when he joined the Hamburg Opera (his family, who were traditionally church musicians, came from near Hamburg) in 1718 as a tenor. In 1719 he obtained a singing post at the court of Brunswick, where in 1721 his first opera, Antioco, was performed; Hasse himself sang in the production.

He is thought to have left Germany during 1722. During the 1720s he lived mostly in Naples, dwelling there for six or seven years. In 1725 his serenata Antonio e Cleopatra, was performed at Naples; the principal roles were sung by Carlo Broschi, better known as Farinelli, and Vittoria Tesi. The success of this work not only earned Hasse many commissions from Naples's opera houses, but also, according to Quantz, brought him into contact with Alessandro Scarlatti, who became his teacher and friend; Hasse also altered his style in several respects to reflect that of Scarlatti.