Reinhard Keiser

Reinhard Keiser
Title page of an opera libretto
Born	(1674-01-09)9 January 1674 Teuchern, Electorate of Saxony, Holy Roman Empire
Died	12 September 1739(1739-09-12) (aged 65) Hamburg, Holy Roman Empire
Occupations	Composer Opera manager Director of church music
Organizations	Oper am Gänsemarkt Danish Royal Chapel

Reinhard Keiser (9 January 1674 – 12 September 1739) was a German opera composer based in Hamburg. He wrote over a hundred operas. Johann Adolf Scheibe (writing in 1745) considered him an equal to Johann Kuhnau, George Frideric Handel and Georg Philipp Telemann, but his work was largely forgotten for many decades.