Konstantin Airich (born 4 November 1978) is a Kazakh-born German heavyweight boxer born in Astana, Kazakhstan and based in Hamburg, Germany. Airich's first defeat was against Danny Williams in a controversial fight. In the sixth round, Williams landed a number of big shots and was thought to be on the verge of knocking Airich out, when the bell sounded with 1:28 left on the clock. Williams ended the fight in the following round, when Airich's promoter decided to throw in the towel. His second loss was a majority decision loss to Ondrej Pala on 6 March 2009.