John Colin Stillwell (born 1942) is an Australian mathematician on the faculties of the University of San Francisco and Monash University.

[1] He was born in Melbourne, Australia and lived there until he went to the Massachusetts Institute of Technology for his doctorate.

[3] From 1970 until 2001, he taught at Monash University back in Australia and in 2002 began teaching in San Francisco.

[1] In 2005, Stillwell was the recipient of the Mathematical Association of America's prestigious Chauvenet Prize for his article "The Story of the 120-Cell,"[4] Notices of the AMS, January 2001, pp. 17–24.

[6] Stillwell is the author of many textbooks and other books on mathematics including: