Siegrid Ernst (born 3 March 1929 in Ludwigshafen am Rhein/Germany) is a German pianist, music educator and composer.
She studied music in Heidelberg, Frankfurt a.M. and Vienna with the subjects of piano and Composition.
Her works consist of Lieder cycles, cantatas, chamber music, orchestral pieces, music for children, improvisation and performance concepts.
She is a founding member of the and was their chairperson.