Robert John Lange atau Robert John "Mutt" Lange adalah seorang produser rekaman musik dan penata musik asal Britania Raya yang dikenal terlibat dalam pengerjaan berbagai album musisi dunia semisal AC/DC (Highway to Hell), Def Leppard (High N' Dry), The Cars (Heartbeat City), Bryan Adams (Waking Up the Neighbours), The Corrs (In Blue), Maroon 5 (Hands All Over), Nickelback (Dark Horse), dan Muse (Drones).

• Hocus-"The Swan"/"He", 1972
• Richard Jon Smith – Superstar Smith, 1974
• City Boy – City Boy, 1976
• City Boy – Dinner at the Ritz, 1976
• Kevin Coyne – In Living Black and White, 1976
• Mallard – In a Different Climate, 1976
• Graham Parker – Heat Treatment, 1976
• Supercharge – Local Lads Make Good, 1976
• The Motors – The Motors, 1977
• City Boy – Young Men Gone West, 1977
• Clover – Love on the Wire, 1977
• Clover – Unavailable, 1977
• Supercharge – Horizontal Refreshment, 1977
• The Boomtown Rats – The Boomtown Rats, 1977
• The Rumour – Max, 1977
• Savoy Brown – Savage Return, 1978
• Michael Stanley Band – Cabin Fever, 1978
• City Boy – Book Early, 1978
• Outlaws – Playin' to Win, 1978
• The Boomtown Rats – A Tonic for the Troops, 1978
• Deaf School – English Boys/Working Girls, 1978
• City Boy – The Day the Earth Caught Fire, 1979
• The Records – Shades in Bed, 1979
• Supercharge – Body Rhythm, 1979
• The Boomtown Rats – The Fine Art of Surfacing, 1979
• AC/DC – Highway to Hell, 1979
• AC/DC – Back in Black, 1980
• Def Leppard – High 'N' Dry, 1981
• AC/DC – For Those About to Rock We Salute You, 1981
• Def Leppard – Pyromania, 1983
• The Cars – Heartbeat City, 1984
• Def Leppard – Hysteria, 1987
• Billy Ocean – Tear Down These Walls, 1988
• Bryan Adams – Waking Up the Neighbours, 1991
• Def Leppard – Adrenalize, 1992
• Shania Twain – The Woman in Me, 1995
• Bryan Adams – 18 til I Die, 1996
• Shania Twain – Come on Over, 1997
• The Corrs – In Blue, 2000
• Shania Twain – Up!, 2002
• Shania Twain – Greatest Hits, 2004
• Nickelback – Dark Horse, 2008
• Maroon 5 – Hands All Over, 2010
• Muse – Drones, 2015

• Robert John Lange di IMDb (dalam bahasa Inggris)