Friedrich Karl Ginzel (26 February 1850 – 29 June 1926) was an Austrian astronomer.
In 1886, he became a member of the Königlichen Astronomischen Recheninstituts in Berlin, where he was offered a professorship in 1899.
In 1899 he published an important study on solar and lunar eclipses in classical antiquity.
[3] His three-volume Handbuch der mathematischen und technischen Chronologie (1906–14; reprinted in 1958 and 2007) is still a standard work on calendars and ancient chronology although some sections are now outdated.
[4] He was awarded the Valz Prize by the French Academy of Sciences in 1884 for his work on solar eclipses.