Desmond Robert Dunn (6 November 1929 – 5 May 2003) was an Australian author of crime fiction and western fiction.

Background Dunn was born Robert Desmond Dunn in Mackay, Queensland, but was known as Desmond Robert Dunn or Des Dunn. He was educated at St Joseph's Nudgee College in Queensland.

Dunn wrote fiction paperback novellas published by Cleveland Publishing from 1955 until 1989. He wrote four crime titles as Des R. Dunn in the mid-1950s. Dunn is also believed to have written up to 80 of the 290-300 titles of the well-known Larry Kent detective series.

Dunn is best known for his western novellas published under several pseudonyms. Dunn's pseudonyms included: Shad Denver, Gunn Halliday, Adam Brady, Brett Iverson, Matt Cregan, Sheldon B. Cole, Walt Renwick and Morgan Culp. He is known to have written over 500 titles using these pseudonyms. The great majority of Dunn's titles were 40,000 words long. Over a 34 year writing career it is estimated that he wrote between 24 and 30 million words; most of which was published.

Dunn married and divorced twice and had three children. Dunn died in Brisbane, Queensland aged 73.

Bibliography Dunn's publications under his name include: 'Desperate Call', (195-?), Silhouette Detective, Number 751, Cleveland Publishing, Sydney, Australia. 'Farewell to Peril', (195-?), Silhouette Detective, Number 750, Cleveland Publishing, Sydney, Australia. 'Go Lightly, Stranger', (195-?), Marlin Book, Number 570, Cleveland Publishing, Sydney, Australia. 'Night Crime', (195-?), New York Detective, Number 751, Cleveland Publishing, Sydney, Australia. Dunn's publications as Shad Denver include: 'A Killer Can Die', (196-), Chisholm Western, Number 691, Cleveland Publishing, Sydney, Australia. 'A Notch Called Nero', (197-), Peacemaker Western, Number 216, Cleveland Publishing, Sydney, Australia. 'A Score to Settle', (198-), Cleveland Western, Number 2150, Cleveland Publishing, Sydney, Australia. 'A Town Divided', (1967), Phoenix Western, Number 271, Cleveland Publishing, Sydney, Australia. 'Along Came Munro', (196-), Big Horn Western, Number 347, Cleveland Publishing, Sydney, Australia. 'Amen for Fools', (1992), Bison Western, Number 1045, Cleveland Publishing, Sydney, Australia. 'Beholden to Kill', (196-), Santa Fe Western, Number 336, Cleveland Publishing, Sydney, Australia. 'Bible's Hireling', (196-), Chisholm Western, Number 687, Cleveland Publishing, Sydney, Australia. 'Big Man', (195-), Chisholm Western, Number 665, Cleveland Publishing, Sydney, Australia. 'Big Man Country', (196-), Winchester Western, Number 793, Cleveland Publishing, Sydney, Australia. 'Big Men Fall Hard', (196-), Arizona Western, Number 122, Cleveland Publishing, Sydney, Australia. 'Blood Hatred', (196-), Bison Western, Number 145, Cleveland Publishing, Sydney, Australia. 'Blood is the Spur', (1966), Bison Western, Number 346, Cleveland Publishing, Sydney, Australia. 'Blood on Big River', (196-), Cleveland Western, Number 1224, Cleveland Publishing, Sydney, Australia. 'Blood Valley', (196-), Pinto Western, Number 417, Cleveland Publishing, Sydney, Australia. 'Bloodlines Don't Lie', (1989), Bison Western, Number 952, Cleveland Publishing, Sydney, Australia. 'Boothill Branded', (196-), Condor Western, Number 226, Cleveland Publishing, Sydney, Australia. 'Boothill Debt', (196-), Chisholm Western, Number 686, Cleveland Publishing, Sydney, Australia. 'Boothill for Innocents', (196-), Sierra Western, Number 449, Cleveland Publishing, Sydney, Australia. 'Boothill Vengeance', (196-), Condor Western, Number 243, Cleveland Publishing, Sydney, Australia. 'Bounty in Blood', (196-), Winchester Western, Number 738, Cleveland Publishing, Sydney, Australia. 'Branded', (195-), Chisholm Western, Number 666, Cleveland Publishing, Sydney, Australia. 'Bring Him Back Dead', (196-), Chisholm Western, Number 706, Cleveland Publishing, Sydney, Australia. 'Bristow's Noon', (1968), Cleveland Classic, Number 132, Cleveland Publishing, Sydney, Australia. 'Buchanan', (1970), Cleveland Western, Number 1345, Cleveland Publishing, Sydney, Australia. 'Bullet Whipped', (196-), Winchester Western, Number 729, Cleveland Publishing, Sydney, Australia. 'Bullets at Broken Ridge', (196-), Bison Western, Number 116, Cleveland Publishing, Sydney, Australia. 'Call Me Mister!', (196-), Chisholm Western, Number 658, Cleveland Publishing, Sydney, Australia. 'Candidate for a Rope', (196-), Sierra Western, Number 447, Cleveland Publishing, Sydney, Australia. 'Code of a Rebel', (1970), Lobo Western, Number 279, Cleveland Publishing, Sydney, Australia. 'Colorado Spread', (196-), Bison Western, Number 305, Cleveland Publishing, Sydney, Australia. 'Cowards Die Twice', (1972), Iron Horse Western, Number 221, Cleveland Publishing, Sydney, Australia. 'Cut a Notch', (196-), Condor Western, Number 161, Cleveland Publishing, Sydney, Australia. 'Danby Territory', (196-), Santa Fe Western, Number 376, Cleveland Publishing, Sydney, Australia. 'Day of the Gun', (196-), Pinto Western, Number 413, Cleveland Publishing, Sydney, Australia. 'Dead Man's Gun', (195-), Chisholm Western, Number 674, Cleveland Publishing, Sydney, Australia. 'Deadly Calibre', (196-), Bison Western, Number 199, Cleveland Publishing, Sydney, Australia. 'Dean Takes Over', (196-), Bison Western, Number 142, Cleveland Publishing, Sydney, Australia. 'Death Rides Double', (196-), Arizona Western, Number 127, Cleveland Publishing, Sydney, Australia. 'Decision at Laramie' (196-), Coronado Western, Number 954, Cleveland Publishing, Sydney, Australia. 'Deputy', (195-), Chisholm Western, Number 667, Cleveland Publishing, Sydney, Australia. 'Deputy of Death', (1967), Cleveland Western, Number 1301, Cleveland Publishing, Sydney, Australia. 'Desperate Frontier', (196-), High Brand Western, Number 220, Cleveland Publishing, Sydney, Australia. 'Diablo Six Gun', (196-), Bison Western, Number 123, Cleveland Publishing, Sydney, Australia. 'Don't Bury Me Yet', (1987), Top Hand Western, Number 332, Cleveland Publishing, Sydney, Australia. 'Don't Push Your Luck', (1975), Lobo Western, Number 306, Cleveland Publishing, Sydney, Australia. 'Drygulcher's Doom', (196-), Pinto Western, Number 422, Cleveland Publishing, Sydney, Australia. 'Dudes Sometimes Dare', (196-), Cleveland Western, Number 1232, Cleveland Publishing, Sydney, Australia. 'Edge of Eden', (196-), Raw Hide Western, Number 432, Cleveland Publishing, Sydney, Australia. 'Everyone's Gunning for Gabriel', (1975), Winchester Western, Number 252, Cleveland Publishing, Sydney, Australia. 'False Law', (196-), Coronado Western, Number 980, Cleveland Publishing, Sydney, Australia. 'Fight or Run', (196-), Cleveland Western, Number 1624, Cleveland Publishing, Sydney, Australia. 'Flash Gannon', (195-), Chisholm Westerns, Number 651, Cleveland Publishing, Sydney, Australia. 'Fools Carve Notches', (196-), Rawhide Western, Number 431, Cleveland Publishing, Sydney, Australia. 'Godspeed', (1972), Bison Western, Number 622, Cleveland Publishing, Sydney, Australia. 'Goldplated Maverick', (196-), Bobcat Western, Number 130, Cleveland Publishing, Sydney, Australia. 'Gun Crazy Town', (196-), Arizona Western, Number 117, Cleveland Publishing, Sydney, Australia. 'Gun Creed', (196-), Bobcat Western, Number 124, Cleveland Publishing, Sydney, Australia. 'Gun Dean', (195-), Chisholm Western, Number 668, Cleveland Publishing, Sydney, Australia. 'Gun Elect', (196-), Sierra Western, Number 448, Cleveland Publishing, Sydney, Australia. 'Gun for a Deputy', (195-), Big Horn Western, Number 306, Cleveland Publishing, Sydney, Australia. 'Gun Gospellers', (1966), Condor Western, Number 194, Cleveland Publishing, Sydney, Australia. 'Gun Kid', (195-), Chisholm Western, Number 664, Cleveland Publishing, Sydney, Australia. 'Gun Prod', (196-), Sierra Western, Number 439, Cleveland Publishing, Sydney, Australia. 'Gun Ranny', (1971), Coronado Western, Number 1022, Cleveland Publishing, Sydney, Australia. 'Gun Shy', (196-), Sierra Western, Number 423, Cleveland Publishing, Sydney, Australia. 'Gun Stampede', (196-), Arizona Western, Number 137, Cleveland Publishing, Sydney, Australia. 'Gun Storm', (195-), Chisholm Western, Number 672, Cleveland Publishing, Sydney, Australia. 'Gun Without Mercy' (196-), Winchester Western, Number 735, Cleveland Publishing, Sydney, Australia. 'Gunfight on Main', (196-), Bison Western, Number 114, Cleveland Publishing, Sydney, Australia. 'Gunman's Altar', (196-), Top Hand Western, Number 131, Cleveland Publishing, Sydney, Australia. 'Gunplay to Eternity', (196-), Bison Western, Number 301, Cleveland Publishing, Sydney, Australia. 'Guns from Out of the Sun', (196-), Cleveland Western, Number 1019, Cleveland Publishing, Sydney, Australia. 'Gunsight Showdown', (196-), Sierra Western, Number 433, Cleveland Publishing, Sydney, Australia. 'Gun-Smart', (196-), Bison Western, Number 109, Cleveland Publishing, Sydney, Australia. 'Gunsmoke Terror', (195-), Bison Western, Number 170, Cleveland Publishing, Sydney, Australia. 'Gunther's Noose', (196-), Santa Fe Western, Number 355, Cleveland Publishing, Sydney, Australia. 'Had My Fill of Hate', (2017), Bison Western, Number 1587, Cleveland Publishing, Sydney, Australia. 'Hang a Dead Man', (1966), Santa Fe Western, Number 343, Cleveland Publishing, Sydney, Australia. 'Hard as Nails', (196-), Phoenix Western, Number 350, Cleveland Publishing, Sydney, Australia. 'Hate Filled Holster', (196-), Winchester Western, Number 727, Cleveland Publishing, Sydney, Australia. 'Hellion for Hire', (196-), Arizona Western, Number 118, Cleveland Publishing, Sydney, Australia. 'Hell's Acre', (197-), Phoenix Western, Number 315, Cleveland Publishing, Sydney, Australia. 'Hell's Hireling', (196-), Sierra Western, Number 456, Cleveland Publishing, Sydney, Australia. 'Here Lies a Loser', (1967), Bison Western, Number 434, Cleveland Publishing, Sydney, Australia. 'Heritage of Hate', (196-), Coronado Western, Number 934, Cleveland Publishing, Sydney, Australia. 'Hero's Hell', (195-), Big Horn Western, Number 320, Cleveland Publishing, Sydney, Australia. 'High Noon Corral', (196-), Coronado Western, Number 979, Cleveland Publishing, Sydney, Australia. 'Hold it, Mister!', (1970), Cleveland Western, Number 1249, Cleveland Publishing, Sydney, Australia. 'I Will Stand!', (1976), Winchester Western, Number 260, Cleveland Publishing, Sydney, Australia. 'In a Jackal's Dust', (1974), Bison Western, Number 655, Cleveland Publishing, Sydney, Australia. 'Invitation to Boot Hill', (196-), Cleveland Western, Number 1401, Cleveland Publishing, Sydney, Australia. 'Iron Man', (196-), Coronado Western, Number 964, Cleveland Publishing, Sydney, Australia. 'Johnny Lobo', (196-), Santa Fe Western, Number 300, Cleveland Publishing, Sydney, Australia. 'Johnny Revenge', (1966), Bison Western, Number 225, Cleveland Publishing, Sydney, Australia. 'Judge Not, Die Not!', (196-), Cleveland Western, Number 1451, Cleveland Publishing, Sydney, Australia. 'Kane', (196-), Coronado Western, Number 959, Cleveland Publishing, Sydney, Australia. 'Keep Off, Stranger', (196-), Arizona Western, Number 125, Cleveland Publishing, Sydney, Australia. 'Keep Shootin', (196-), Bison Western, Number 112, Cleveland Publishing, Sydney, Australia. 'Lanny Shan', (196-), Winchester Western, Number 809, Cleveland Publishing, Sydney, Australia. 'Last of the Tancreds', (1974), Pinto Western, Number 493, Cleveland Publishing, Sydney, Australia. 'Law for Hire', (195-), Big Horn Western, Number 330, Cleveland Publishing, Sydney, Australia. 'Left-Handed Law', (196-), Santa Fe Western, Number 318, Cleveland Publishing, Sydney, Australia. 'Long Trail of Diablo', (1970), Cleveland Classic, Number 98, Cleveland Publishing, Sydney, Australia. 'Lorimer's Day', (196-), Santa Fe Western, Number 361, Cleveland Publishing, Sydney, Australia. 'Man Behind the Gun', (196-), Bobcat Western, Number 154, Cleveland Publishing, Sydney, Australia.