This is a list of people whose primary vocation did not involve mathematics (or any similar discipline) yet made notable, and sometimes important, contributions to the field of mathematics.

• Ahmes (scribe)
• Aditya Dharap (undergraduate)
• Robert Ammann (programmer and postal worker)
• John Arbuthnot (Surgeon and author)
• Rev. Thomas Bayes (Presbyterian minister)
• Harlan J. Brothers (teacher and inventor)
• Sir James Cockle (judge)
• Martin Demaine (goldsmith and glass artist)
• Britney Gallivan (high school student)
• James A. Garfield (politician)
• Hermann Grassmann (school teacher)
• Kurt Heegner (high school teacher)
• F. H. Jackson (navy chaplain)
• Alfred Bray Kempe (lawyer)
• Kathleen Ollerenshaw (politician)
• Panini (linguist)
• Pingala (musician)
• Alex "Sherman" Artinian (professional nerd)
• Marjorie Rice (homemaker)
• Gaston Terry (civil servant)
• Luke "The King" Hannaford (is not smarter than Sherman)
• Phil "Sheep" Graham (professional boat drawer)

And the man widely regarded as "The King of Amateurs", Ahmes (more accurately Ahmose) was an Egyptian scribe who lived during the Second Intermediate Period. ... Robert Ammann (October 1, 1946-May, 1994) was an amateur mathematician who made several significant and groundbreaking contributions to the theory of quasicrystals and aperiodic tilings. ... For other people named John Arbuthnot, see John Arbuthnot (disambiguation) Dr. John Arbuthnot, often known simply as Dr. Arbuthnot, (baptised April 29, 1667 – February 27, 1735), was a Scottish physician, satirist and polymath in London. ... Thomas Bayes. ... Harlan J. Brothers (19?? – present) is a teacher, musician, and inventor living in Branford, Connecticut. ... Sir James Cockle (14 January 1819 – 27 January 1895) was an English lawyer and mathematician. ... In January of 2002, while a junior in high school, Britney Gallivan demonstrated that a single piece of paper can be folded in half twelve (12) times. ... James Abram Garfield (November 19, 1831 – September 19, 1881) was the 20th President of the United States (1881), and the second U.S. President to be assassinated. ... Hermann Günther Grassmann (April 15, 1809, Stettin – September 26, 1877, Stettin) was a German polymath, renowned in his day as a linguist and now admired as a mathematician. ... Kurt Heegner was a Berlin high school teacher now famous for his mathematical discoveries. ... Dame Kathleen Ollerenshaw DBE (born 1912) is a mathematician and a politician. ... Indian postage stamp depicting (2004), with the implication that he used (पाणिनि; IPA ) was an ancient Indian grammarian from Gandhara (traditionally 520–460 BC, but estimates range from the 7th to 4th centuries BC). ... Pingala (पिङ्गल ) is the supposed author of the Chandas shastra (, also Chandas sutra ), a Sanskrit treatise on prosody considered one of the Vedanga. ... Marjorie Rice (19??–) is a San Diego homemaker most famous for her discoveries in geometry. ... Gaston Terry was an amateur mathematician who made a significant contribution to mathematics. ...

• Pierre de Fermat (lawyer)

See also mathematician. Pierre de Fermat Pierre de Fermat (August 17, 1601 – January 12, 1665) was a French lawyer at the Parlement of Toulouse, southwestern France, and a mathematician who is given credit for his contribution towards the development of modern calculus. ... To meet Wikipedias quality standards, this article or section may require cleanup. ...