Clifton Robbins (22 October 1890 – 9 December 1964) was an English journalist, writer of golden age detective fiction in the 1930s, and executive of the International Labour Organization. His stories of amateur detectives involved murder and international drug smuggling and he is best known for his series featuring Clay Harrison, a London barrister turned amateur detective, and his clerk Henry. He worked for the International Labour Organization from 1920, ultimately becoming director of the ILO London office in 1945 before retiring in 1950 to become principal of the Y.M.C.A. College for Adults in Kingsgate, Kent, for eight years.