S. Hussain Zaidi is an Indian author and former investigative journalist. Zaidi is India's most prolific crime writer. The Mumbai mafia has been his focus in books such as Dongri to Dubai: Six Decades of the Mumbai Mafia, Mafia Queens of Mumbai, My Name is Abu Salem and Byculla to Bangkok.

Zaidi began his career in journalism while working for the newspaper The Asian Age, where he became the resident editor. Zaidi later worked for several other periodicals, including The Indian Express, Mid Day and Mumbai Mirror.