Luis Estévez (c. 1930 – November 28, 2014) was a Cuban-born American fashion designer and costume designer, active between 1951 until 1997. According to the New York Times, "Luis Estevez always did make a lady look like a vamp", known for his high slits, slinky dresses and dramatic necklines.

Estévez was a founding member of Council of Fashion Designers of America (CFDA).

Luis Estévez de Gálvez was born in c.1930 in Havana, Cuba to a wealthy Spanish-Cuban family. His father, Luis "Buffalo" Estévez, was an engineer, his mother, Gloria Cortínas Benítez de Gálvez, was a socialite, and his grandfather was a Cuban sugar magnate. His family had many generations of distinguished relatives and were descend from the De Gálvez family, whom the city of Galveston, Texas was named and from a founder of the city of St. Augustine. His mother frequently had American magazines and adored French haute couture; she encouraged and influenced his love of fashion and drawing.

At age 10, Estévez was sent to Pennsylvania to live with his aunt and her family because multiple kidnapping attempts were made on him in Cuba. He attended college-preparatory school in Delaware at Sanford School, graduating in 1947. He went on to study architecture at the University of Havana, and upon leaving college, moved to New York City. He never graduated from the University of Havana.

In New York City Estévez started to focus on fashion and he attended the Traphagen School of Fashion, graduating in 1951 in costume design. While in school he got a job in window display at the Lord & Taylor department store; the job did not pay much but it gave him experience. His mother, who divorced his father, financially supported Estévez, which allowed him to enjoy New York nightlife and meet New York society, including at the nightclub El Morocco. He started dating Bahamian-American model Betty Dew at this time; she was a regular guest at the El Morocco nightclub.

Lilly Daché, milliner and fashion designer, hired Estévez to create a few designs while he was in school but he realized he was not yet experienced enough in his career and quit that job.

Estévez and his girlfriend Dew took a 1951 boat trip to France together, where he befriended more established designers including Hubert de Givenchy, Jacques Fath, and French Vogue editor Françoise de Langlade. He got an internship at the house of Jean Patou and the couple stayed in France for one year.

In 1952, Estévez returned to New York City and joined Pat Hartley, a ready-to-wear fashion company. By 1955, Estévez launched his own label Grenelle-Estévez and a ready-to-wear collection with Fred Greenberg, Robert Greenberg and Ben Papell. His signature-style clothing was form-fitting cocktail and evening dresses designed with figure flattering shape, unusual angles, and noticeable necklines. His ready-to-wear clothing was moderately priced when compared to haute couture clothing, making it easy to sell in stores. One year later in 1956, at age 26, he became the youngest designer to win the Coty Award.