Sonia Haft Greene Lovecraft Davis (16 March 1883, Ichnia - 26 December 1972) was a one-time pulp fiction writer and amateur publisher, a single mother, business woman and successful milliner who bankrolled several fanzines in the early twentieth century. She is perhaps best known for being president of the United Amateur Press Association, and her two-year marriage to American weird fiction writer H. P. Lovecraft.
Some of Sonia's biographical details are unclear – she was born as either Sonia Haft Shafirkin or as Sonia Shaferkin Haft in either Ichnia, Ukraine, Russian Empire or Konotop, Chernigov Province to Simyon and Racille (Haft) Shafirkin. Her father apparently died when she was a child, and her mother emigrated to the United States, leaving Sonia and her brother in Liverpool at the Baron Maurice de Hirsch School. Sonia joined her mother in America in 1892, after her mother remarried to a shopkeeper named Samuel Morris.
At the age of sixteen, on 24 December 1899, Sonia married Samuel Greene, a Russian whose name may have originally been Samuel Seckendorff, who was ten years her senior. The following year she gave birth to a son, who died at three months of age.