Jin Akiyama

Jin Akiyama (; born 1946) is a Japanese mathematician, known for his appearances on Japanese prime-time television (NHK) presenting magic tricks with mathematical explanations. He is director of the Mathematical Education Research Center at the Tokyo University of Science, and professor emeritus at Tokai University.

Akiyama studied mathematics at the Tokyo University of Science,

Akiyama is a founder of the Japan Conference on Discrete and Computational Geometry, Graphs, and Games (JCDCG3), Factors and Factorizations of Graphs (with Mikio Kano, Lecture Notes in Mathematics 2031, Springer, 2011), and Treks Into Intuitive Geometry: The World of Polygons and Polyhedra (with Kiyoko Matsunaga, Springer, 2015). He is also the namesake of a Nintendo DS game, Master Jin Jin's IQ Challenge.

Akiyama's lectures sometimes also include musical performances by him, on accordion or xylophone.