Yukihiro Matsumoto - WikipediaMatsumoto giving the keynote speech at EuRuKo 2011 Matsumoto accepting an award from the Free Software Foundation (founder Richard Stallman, right) in 2012 Yukihiro Matsumoto (まつもとゆきひろ, Matsumoto Yukihiro, born 14 April 1965), also known as Matz, is a Japanese computer scientist and software programmer best known as the chief designer of the Ruby programming language and its original reference imp
