Peter Igelhoff (born Rudolf August Ordnung, 22 July 1904 in Vienna – 8 April 1978 in Bad Reichenhall) was an Austrian pianist, light music and film composer, arranger and entertainer; he took his mother's maiden name as soon as he resolved on a career in light entertainment. Igelhoff was an extremely able pianist with an enviable concert technique, accompanying his light tenor voice (and occasionally his virtuoso whistling) in songs.