List of Famous people born on January 31st

Walter Fiers was a Belgian molecular biologist.

Prince Leopold Franz Julius of Saxe-Coburg and Gotha was a German prince of the House of Saxe-Coburg and Gotha-Koháry.

Yuniesky Betancourt Pérez is a Cuban professional baseball shortstop. Betancourt has played in Major League Baseball (MLB) for the Milwaukee Brewers, Seattle Mariners, and Kansas City Royals. He played in the Cuban National Series for Villa Clara before he defected from Cuba. In 2019, he became the first former MLB player to return to the Cuban national baseball system after defecting from the country. However, he never played a game for Villa Clara in 2019. In Cuba, he is nicknamed "Riquimbili".

Silvana López Moreira Bó is the current First Lady of Paraguay since 15 August 2018, due to her marriage to President Mario Abdo Benítez. With López Moreira, the office of First Lady was reopened in Paraguay after a vacant period, since the previous President, Horacio Cartes, ordered its closure due to being divorced.

Edward Berkeley Portman of Bryanston House, Bryanston, Dorset was an 18th-century English housing developer and politician.

Henry Pelham Fiennes Pelham-Clinton, 4th Duke of Newcastle-under-Lyne was a British nobleman and politician who played a leading part in British politics in the late 1820s and early 1830s. He was styled Lord Clinton from birth until 1794 and Earl of Lincoln between 1794 and 1795.

John Wayles was a planter, slave trader and lawyer in the Virginia Colony. He is historically best known as the father-in-law of Thomas Jefferson, the third President of the United States. Wayles was married three times, and these marriages produced eleven children; only five of them lived to adulthood. Wayles' relationship with Betty Hemings resulted in six additional children, including Sally Hemings, who was the mother of six children with Thomas Jefferson and half-sister of Martha Jefferson.

Michel Guillaume Jean de Crèvecœur, naturalized in New York as John Hector St. John, was a French-American writer. He was born in Caen, Normandy, France, to the Comte and Comtesse de Crèvecœur.