* 1900, Elliott Cresson Medal, The Franklin Institute Awards, Philadelphia, PA, USA
* 1901,  raised to the hereditary nobility by Franz Joseph I of Austria, with the title of Freiherr Auer von Welsbach
*1920, Werner von Siemens Ring
*1921, Wilhelm Exner Medal, inaugural awardee, Austrian Industry Association, Austria
* 1988, the Welsbach Museum at Althofen was opened in April, 1998
* 2011, National Inventors Hall of Fame, North Canton, Ohio, USA