Ernst Albert Couturier (September 30, 1869 in Poughkeepsie – February 28, 1950 in Wingdale) was best known as a cornet player who toured as a "virtuoso" performer on the concert programs of bands of the day.
He promoted the Holton Band Instrument Company for a decade in that capacity before applying his own unique inventions to the production of his own line of brass band instruments between 1918 and 1923.