John Jansen (born October 3, 1947) is an American recording engineer and music producer. He worked with a wide variety of artists over the years, mostly in the rock genre: Joe Cocker, The Who, Spencer Davis Group, Cat Mother, Paul Winter Consort, Roger Daltry, Supertramp, Henry McCullough, Pavlov's Dog, Procol Harum, Blue Oyster Cult, The Dictators, Alice Cooper, Frankie Miller, Meatloaf, Yipes, The Motors, Television, Barry Manilow, Bonnie Tyler, Air Supply, The Bongos, Billy Squier, Britny Fox, Eric Clapton, Warrant, Tom Verlaine, Faster Pussycat, Bang Tango, Love/Hate, Cinderella, Alias, Judge Mercy, Jimi Hendrix, The Producers, Orchestra