| Christian Reiher | |
| Birth Date: | 19 April 1984 |
| Birth Place: | Starnberg, Bavaria, West Germany |
| Nationality: | German |
| Fields: | Mathematics |
| Workplaces: | University of Hamburg |
| Alma Mater: | University of Rostock LMU Munich |
| Doctoral Advisor: | Hans-Dietrich Gronau |
| Known For: | Proving Kemnitz's conjecture |
| Awards: | European Prize in Combinatorics (2017) |
Christian Reiher (born 19 April 1984 in Starnberg) is a German mathematician.
He is the fifth most successful participant in the history of the International Mathematical Olympiad, having won four gold medals in the years 2000 to 2003 and a bronze medal in 1999.
Just after finishing his Abitur, he proved Kemnitz's conjecture, an important problem in the theory of zero-sums.[1]
He went on to earn his Diplom in mathematics from the Ludwig Maximilian University of Munich.
Reiher received his Dr. rer. nat. from the University of Rostock under supervision of in February 2010 (Thesis: A proof of the theorem according to which every prime number possesses property B) and works now at the University of Hamburg.