Steven Gaines (born 1946) is an American author, journalist, and radio show host. His 13 books include Philistines at the Hedgerow: Passion and Property in the Hamptons; The Sky’s the Limit: Passion and Property in Manhattan; The Love You Make: An Insider's Story of The Beatles; Heroes and Villains: The True Story of the Beach Boys; Marjoe, the biography of evangelist Marjoe Gortner; Fool's Paradise: Players, Poseurs and the Culture of Excess in South Beach; and One of These Things First, a memoir. His 1991 biography of the fashion designer Halston (Simply Halston) was the basis for Ryan Murphy's 2021 Netflix series, for which Ewan McGregor won the Best Actor Emmy Award.