Ida Estelle Taylor (May 20, 1894 – April 15, 1958) was an American actress, singer, and model. With "dark-brown, almost black hair and brown eyes," she was regarded as one of the most beautiful silent film stars of the 1920s.

After her stage debut in 1919, Taylor began appearing in small roles in World and Vitagraph films. She achieved her first success with While New York Sleeps (1920), in which she played three different roles, including a femme fatale, or "vamp." She was a contract player of Fox Film Corporation and, later, Paramount Pictures, but for the majority of her career she freelanced. She became famous and was commended by reviewers for her portrayals of historical women in important films: Miriam in The Ten Commandments (1923), Mary, Queen of Scots in Dorothy Vernon of Haddon Hall (1924), and Lucrezia Borgia in Don Juan (1926).

Taylor and her second husband, world heavyweight champion Jack Dempsey, were a popular Hollywood couple. Although she made a successful transition to sound films, she retired from film acting in 1932 to focus entirely on her singing career. She was also active in animal welfare before her death from cancer in 1958. She was posthumously honored in 1960 with a star on the Hollywood Walk of Fame in the motion pictures category.

Ida Estelle Taylor was born on May 20, 1894, in Wilmington, Delaware. Her father, Harry D. Taylor (born 1871), was born in Harrington, Delaware. Her mother, Ida LaBertha "Bertha" Barrett (1874–1965), was born in Easton, Pennsylvania, and later worked as a freelance makeup artist. The Taylors had another daughter, Helen (1898–1990), who also became an actress. According to the 1900 census, the family lived in a rented house at 805 Washington Street in Wilmington. In 1903, Ida LaBertha was granted a divorce from Harry on the ground of nonsupport; the following year, she married a cooper named Fred T. Krech. Ida LaBertha's third husband was Harry J. Boylan, a vaudevillian.

Taylor was raised by her maternal grandparents, Charles Christopher Barrett and Ida Lauber Barrett. Charles Barrett ran a piano store in Wilmington, and Taylor studied piano. Her childhood ambition was to become a stage actress, but her grandparents initially disapproved of her theatrical aspirations. When she was ten years old she sang the role of "Buttercup" in a benefit performance of the opera H.M.S. Pinafore in Wilmington. She attended high school but dropped out because she refused to apologize after a troublesome classmate caused her to spill ink from her inkwell on the floor. In 1911, she married bank cashier Kenneth M. Peacock. The couple remained together for five years until Taylor decided to become an actress. She soon found work as an artists' model, posing for Howard Pyle, Harvey Dunn, Leslie Thrasher, and other painters and illustrators.

In April 1918, Taylor moved to New York City to study acting at the Sargent Dramatic School. She worked as a hat model for a wholesale millinery store to earn money for her tuition and living expenses. At Sargent Dramatic School, she wrote and performed one-act plays, studied voice inflection and diction, and was noticed by a singing teacher named Mr. Samoiloff who thought her voice was suitable for opera. Samoiloff gave Taylor singing lessons on a contingent basis and, within several months, recommended her to theatrical manager Henry Wilson Savage for a part in the musical Lady Billy. She auditioned for Savage and he offered her work as an understudy to the actress who had the second role in the musical. At the same time, playwright George V. Hobart offered her a role as a "comedy vamp" in his play Come-On, Charlie, and Taylor, who had no experience in stage musicals, preferred the non-musical role and accepted Hobart's offer.

Taylor made her Broadway stage début in George V. Hobart's Come-On, Charlie, which opened on April 8, 1919, at 48th Street Theatre in New York City. The story was about a shoe clerk who has a dream in which he inherits one million dollars and must make another million within six months. It was not a great success and closed after sixteen weeks. Taylor, the only person in the play who wore red beads, was praised by a New York City critic who wrote, "The only point of interest in the show was the girl with the red beads." During the play's run, producer Adolph Klauber saw Taylor's performance and said to the play's leading actress Aimee Lee Dennis: "You know, I think Miss Taylor should go into motion pictures. That's where her greatest future lies. Her dark eyes would screen excellently." Dennis told Taylor what Klauber said, and Taylor began looking for work in films. With the help of J. Gordon Edwards, she got a small role in the film A Broadway Saint (1919). She was hired by the Vitagraph Company for a role with Corinne Griffith in The Tower of Jewels (1920), and also played William Farnum's leading lady in The Adventurer (1920) for the Fox Film Corporation.

One of Taylor's early successes was in 1920 in Fox's While New York Sleeps with Marc McDermott. Charles Brabin directed the film, and Taylor and McDermott play three sets of characters in different time periods. This film was lost for decades, but has been recently discovered and screened at a film festival in Los Angeles. Her next film for Fox, Blind Wives (1920), was based on Edward Knoblock's play My Lady's Dress and reteamed her with director Brabin and co-star McDermott. William Fox then sent her to Fox Film's Hollywood studios to play a supporting role in a Tom Mix film. Just before she boarded the train for Hollywood, Brabin gave her some advice: "Don't think of supporting Mix in that play. Don't play in program pictures. Never play anything but specials. Mr. Fox is about to put on Monte Cristo. You should play the part of Mercedes. Concentrate on that role and when you get to Los Angeles, see that you play it."