Emma Johanna Antonia Juch (July 4, 1861[3] – March 6, 1939) was a soprano opera singer of the 1880s and 1890s from Vienna, Austria.

[5] Juch was admired in the United States and England during a grand opera and concert career spanning thirteen years.

Biographer Oscar Thompson wrote of Juch that "her voice was one of unusually lovely quality and extraordinary purity.

[6] She made her debut as Philine in Mignon in June 1881 two months after Colonel James Henry Mapleson engaged her to sing leading soprano roles in Her Majesty's Grand Italian Opera in London, England.

[5] In June 1882, she received favorable notices when she returned to New York to take part in a memorial concert to raise funds for the families of operatic bass George Conly and virtuoso pianist Herman Rietzel, both recently drowned in a boating accident.

[7] After her contract with Col. Mapleson lapsed, William Steinway introduced her to the conductor Theodore Thomas, and she accepted an offer to tour with the Wagnerian artists Amalie Materna, Christina Nilsson, Hermann Winkelmann, and Emil Scaria.

The operas presented included The Magic Flute, Faust, Gluck's Orpheus and Eurydice, Rubinstein's Nero, and Wagner's Lohengrin and The Flying Dutchman.

The New York World complimented her on making great strides in singing the part of Marguerite since her tenure with the American Opera Company.