List of Famous people born on December 23rd

Robert Elliot Kahn is an American electrical engineer, who, along with Vint Cerf, first proposed the Transmission Control Protocol (TCP) and the Internet Protocol (IP), the fundamental communication protocols at the heart of the Internet.

Chi Zhongrui or Chi Chongrui is a Chinese actor famous for his role as Tang Sanzang in the 1986 television series Journey to the West.

Galina Efremenko, née: Maniachenko is a Ukrainian former competitive figure skater. She competed as Galina Maniachenko from 1993 until 2005 when she began competing under her married name, Efremenko. She won the bronze medal at the 2003 Cup of Russia, gold medals at the 2000 Nebelhorn Trophy, 2003 Karl Schäfer Memorial, 2000 and 2003 Ondrej Nepela Memorial, and three Ukrainian national titles. She competed twice at the Winter Olympics, placing 12th in 2002. Her highest placement at the European Championships was 4th in 2002.

Jens Heppner is a German former road bicycle racer. He wore the pink jersey as leader of the general classification during the 2002 Giro d'Italia. Although he rode for Telekom during ten years, he has consistently denied ever having doped.

James Timothy Hardin was an American folk musician and composer. He wrote the Top 40 hit "If I Were a Carpenter", covered by, among others, Bobby Darin, Bob Dylan, Bob Seger, Joan Baez, Johnny Cash, The Four Tops, Robert Plant, Small Faces, Johnny Rivers, and Bert Jansch; his song "Reason to Believe" has also been covered by many artists, notably Rod Stewart, Neil Young, and The Carpenters. The Nice also recorded and performed live a popular version of Hardin's song "Hang On To A Dream" based on a piano arrangement by Keith Emerson. Hardin is also known for his own recording career.

Jesús Huerta de Soto Ballester is a Spanish economist of the Austrian School. He is a professor in the Department of Applied Economics at King Juan Carlos University of Madrid, Spain and a Senior Fellow at the Ludwig von Mises Institute.

Andrea Prader was a Swiss scientist, physician, and pediatric endocrinologist. He co-discovered Prader–Willi syndrome and created two physiological sex development scales, the Prader scale and the orchidometer.