Gloria Rubio y Alatorre, better known as Gloria Guinness (August 27, 1912 - November 9, 1980) was an elegant, earthy socialite (major) and writer (minor) of the mid 20th century.

Born in Vera Cruz, Mexico, she was a daughter of José Rafael Rubio , a Mexican journalist, and his wife, Dolores Alatorre. She was known to have been married three times, though a website of the former Egyptian royal family, into she married, indicates a fourth spouse, surname Scholtens.

Though Scholtens may be her actual first husband, her first official husband, whom she married in 1935, was Count Franz Egon von Fürstenberg-Herdringen , by whom she had one daughter, Countess Dolores von Fürstenberg-Herdringen (born in 1936, she married her stepbrother Patrick Guinness), and a son, Count Franz von Fürstenberg-Herdringen.

Her second husband was Ahmed Fakhri Bey (1921-1988), a grandson of King Fuad I of Egypt and a nephew of both Princess Fawzia of Egypt (the first wife of Mohammed Reza Pahlavi, Shah of Iran) and King Farouk I of Egypt.

Her third husband, whom she married in 1951, was Group Capt. Thomas Loel Guinness, a Member of Parliament (died 1989) and an heir to the Guinness beer fortune. Of him, she famously told Noel Coward, " I could never sleep with Loel. He farts too much." There is also a long-standing rumor that Gloria Guinness was employed at some point as a spy and that when she married Guinness, she had no valid passport and was legally a citizen of no country.

Gloria Guinness died in 1980 in Lausanne, Switzerland.