Zelma Oakley Roberts (née Mason, 24 September 1915 – 9 February 1988) was a New Zealand-born writer who wrote several screenplays for T.O. McCreadie in the late 1940s.

Born in Christchurch on 24 September 1915,^[1] Roberts was the daughter of William James Mason and his wife Eva Mason (née Oakley). She studied at Victoria University College in Wellington, graduating Master of Arts in 1936.^[2]

After her husband Wilfred died in the war while serving in the New Zealand 2nd Division,^[3] she turned to writing. Her novel Always Another Dawn was bought by McCreadie and filmed in 1948.^[4]

In 1968, Roberts remarried Herbert Dineley in Scotland. She died in Sydney, New South Wales, Australia, on 9 February 1988, and her ashes were buried at Eastern Suburbs Memorial Park, Matraville.

• The Black Spider (1945) – novel
• The Corpse Wore Wax (1947) – novel
• Always Another Dawn (1948) – novel
• Always Another Dawn (1948) – screenplay
• Into the Straight (1949) – screenplay
• The Search for Power (1954) – radio script^[5]