John Scantlebury Macdonald (May 30, 1871 – September 26, 1931) was a Canadian-born singer and recording executive.

Under the pseudonym Harry Macdonough, he was one of the most prolific and popular tenors during the formative years of the recording industry.

His most popular recordings included “Shine On, Harvest Moon” (with Elise Stevenson), “Down By The Old Mill Stream”, “They Didn’t Believe Me” (with Olive Kline), “Tell Me, Pretty Maiden” (with Grace Spencer), and “Where The River Shannon Flows”.

[1] His earliest recorded performances were for the Michigan Electric Company in Detroit, which made phonograph cylinders for penny arcades.

[9] In October 1913, he recorded a duet with the American singer Marguerite Dunlap of "When It's Apple Blossom Time in Normandy".