Maria Müller (29 January 1898 – 15 March 1958) was a Czech-Austrian operatic soprano.
Müller was born in Terezín, Bohemia. She studied in Vienna with Erik Schmedes, and debuted in Linz in 1919 as Elsa in lLohengrin. She also sang at the Deutsches Theater in Prague 1921-1923 (where she sang the role of Nettchen in the premiere of the revised version of Alexander Zemlinsky's opera Kleider machen Leute) and at the Staatsoper, Munich in 1923-1924.
On 21 January 1925, she made her debut at the Metropolitan Opera in New York City as Sieglinde in Die Walküre. The next day, Olin Downes wrote in The New York Times: “young Czech soprano .. was warmly welcomed. She has a fresh and youthful voice, a little small for the demands of her role, much grace and sincerity as an actress. Not often is the figure of Sieglinde so human, so tender and so appealing to the beholder." The same year she sang Donna Elvira in Don Giovanni. She sang a total of 196 performances at the Metropolitan Opera between 1925 and 1935. She sang there in a number of American premieres including Franco Alfano's Madonna Imperia (8 February 1928), Pizzetti's Fra Gherardo (29 March 1929), also in the opera Švanda the Bagpiper by the Czech-American composer Jaromír Weinberger (11 July 1931), and Simon Boccanegra (29 January 1932).