Eduard Haken (22 March 1910 - 12 January 1996, Prague) was a Czech operatic bass who had a lengthy career at the National Theatre in Prague during the 20th century. Although he mostly performed within his own nation, Haken did appear at a number of important international music festivals and opera houses in Europe while traveling with the National Theatre. He was also active as a concert soloist and recitalist.Haken possessed a dark and glossy voice that was agile and powerful enough to assail a wide array of parts from the dexterous bel canto repertoire to heavier dramatic roles. A fine actor with a good sense of comic timing, he also excelled in the basso buffo repertoire. His voice is preserved on numerous opera recordings made with the Supraphon record label.