Mikuláš Schneider-Trnavský KSG (24 May 1881, Trnava – 28 May 1958, Bratislava) was a Slovak composer, conductor and pedagogue. He was popular mostly because of his songs, some becoming traditional.In 1900, he passed his maturita exam in Trnava. From 1900 to 1901, he studied composition at the Budapestian conservatory with Hans von Koessler. From 1901 to 1903, he studied at the conservatory in Vienna with Hermann Graedener. Finally, from 1903 to 1905, he studied organ playing in Prague with Josef Klička and composition with Carl Stecker.After his studies, he became regenschori in Zrenjanin, Serbia. In 1908, he performed together with Czech barytonist Bohumír Nepomucký on the concert tour through Europe. After returning to Trnava, in 1909, he became regenschori at the Saint Nicholas Cathedral in Trnava and remained at this post until his death.