List of Famous people born on January 21st

Pieter Timmers is a Belgian retired competitive swimmer who specialized in sprint freestyle events. He won the silver medal in the 100 meter freestyle at the 2016 Olympics. Timmers currently holds nine Belgian records, and seven national titles in long and short course freestyle. Timmers is a resident athlete for Brabo Antwerp, and trains under his personal coach Ronald Gaastra. He stands 2.00 m, and weighs 89 kg (196 lb). He ended his career in Budapest in the second season of the International Swimming League in 2020.

Kei Nakano is a Japanese football player. He plays for FC Imabari.

Ulrich Le Pen is a French former professional footballer who played as a midfielder. He spent most of his career in his native France apart from a short stint at Ipswich Town.

Alexander Sergeevich Misharin is the former governor of Sverdlovsk Oblast, a region in Russia. He was appointed in 2009 after resignation of the previous governor, Eduard Rossel and resigned on May 14, 2012. Prior to his governorship, he made a career in the railway industry, rising to Russia's Deputy Railway Minister. He was appointed first vice-president of Russian Railways and head of Skorostniye Magistrali, the Russian high-speed rail developer and operator on November 28, 2012.

Edith Mary Tolkien was an Englishwoman, known as the wife and muse of novelist J. R. R. Tolkien, and the inspiration for his fictional characters Lúthien Tinúviel and Arwen Undómiel.

Harriet Backer was a Norwegian painter who achieved recognition in her own time and was a pioneer among female artists both in the Nordic countries and in Europe generally. She is best known for her detailed interior scenes, communicated with rich colors and the interplay of light and shadow.

Krzysztof Opaliński was a Polish nobleman, politician, writer, satirist and Governor of Poznań. A notable figure during the Swedish Deluge, Opaliński was a skilled diplomat who opposed King John II Casimir and published many of his works concerning the daily political or social matters in the Polish–Lithuanian Commonwealth.