Marianne Müller, née Hellmuth (1 or 4 January 1772 – 31 May 1851) was a German soprano and actress.

She made her debut singing the part of Gretchen in Anton Schweitzer's Dorfgalle in Bonn in 1780, and appeared as Victorine in Eifersucht auf der Probe in Schwedt in 1785, and as Röschen in Zauberspiegel in Berlin in 1788.

Initially, she was employed as an actress, however, over the time, her career slowly moved towards opera.

In 1803, she made her debut as Konstanze in Mozart's Die Entführung aus dem Serail.

She played the role of Agnes Sorel in Friedrich Schiller's Die Jungfrau von Orleans over 25 times.