Herman (Hermann) Jadlowker (17 July 1877, Riga – 13 May 1953, Tel Aviv) was a leading Latvian-born tenor of Russian (later Israeli) nationality who enjoyed an important international career during the first quarter of the 20th century. His virtuoso recordings of arias from Idomeneo and Il barbiere di Siviglia, among others, are considered to this day to be classics of the gramophone.