Anastazy Wilhelm Dreszer (April 28, 1845 – June 2, 1907) was a Polish pianist, composer, and educator.

Dreszer was born in Kalisz, then in the Russian Empire. After studying at the conservatory in Dresden with Krebs, Döring, and Früh, Dreszer moved to Leipzig then Halle. He taught singing at a school he founded in 1868. He composed two symphonies and various pieces for piano. He died, aged 62, in Halle.

References

• Barbara Chmara-Żaczkiewicz, "Dreszer, Anastazy Wilhelm" in The New Grove Dictionary of Music and Musicians, ed. Stanley Sadie. New York: Macmillan Publishers Limited (1980): 5 631
• C. R. H., "DRESZER, Anastazy Wilhelm" in Grove's Dictionary of Music and Musicians, 5th edition, ed. Eric Blom. London: Macmillan & Co. Ltd. (1954): II 767