Wolfgang Alexander Thomas-San-Galli (real name Wolfgang Alexander Thomas; 18 September 1874 – 17 June 1918) was a German musicologist, music critic, violist and music writer.
Thomas-San-Galli was born in Badenweiler the eldest son of doctor Hermann Julius Thomas and his wife Jacobine née Simons.
[1] In 1898 he received his doctorate in law from the University of Freiburg and married the concert pianist and accompanist Helene née Bertoldy[2] (1861–1938) from Saint Petersburg.
From 1899 to 1903 he headed the Hochschule für Musik Freiburg and founded the Süddeutsche Streichquartett there, to which he belonged as a violist until 1908.
That same year, he moved to Cologne, where he became editor and writer of the Rheinische Musik- und Theaterzeitung.