Sieghart Döhring (born 12 December 1939) is a German musicologist and Opera researcher.
Born in Biskupiec, East Prussia, Döhring studied musicology, theology and philosophy in Hamburg and Marburg/Lahn.
From 1983 to 2006 he was head of the Forschungsinstitut für Musiktheater in Schloss Thurnau [de] at the University of Bayreuth.
Together with Carl Dahlhaus he published Piper's Encyclopedia of Music Theatre [de] from 1986 to 1997.
Döhring is married to the musicologist and opera researcher Sabine Henze-Döhring.