Alan MacDiarmid, New Zealand chemist and academic, Nobel Prize laureate (died 2007)

Alan Graham MacDiarmid, ONZ FRS was a New Zealand-born American chemist, and one of three recipients of the Nobel Prize for Chemistry in 2000.

The Nobel Prize in Chemistry is awarded annually by the Royal Swedish Academy of Sciences to scientists in the various fields of chemistry. It is one of the five Nobel Prizes established by the will of Alfred Nobel in 1895, awarded for outstanding contributions in chemistry, physics, literature, peace, and physiology or medicine. This award is administered by the Nobel Foundation and awarded by the Royal Swedish Academy of Sciences on proposal of the Nobel Committee for Chemistry, which consists of five members elected by the Academy. The award is presented in Stockholm at an annual ceremony on December 10th, the anniversary of Nobel's death.