Pictet is the surname of several people:
- Adolphe Pictet (1799 - 1875), Swiss linguist
- Amé Pictet (1857 - 1937), Swiss chemist
- Benedict Pictet (1655–1724), Swiss theologian
- Charles Pictet de Rochemont (1755 - 1824), Swiss politician
- François Jules Pictet de la Rive (1809 - 1872), Swiss zoologist and palaeontologist
- Marc-Auguste Pictet (1752 - 1825), Swiss physicist
- Raoul Pictet (1846 - 1929), Swiss physicist, one of the first two people to liquefy oxygen
In addition to that, for:
- Pictet (crater), crater on the moon, named after Marc-Auguste Pictet
- Pictet–Spengler reaction, chemical reaction in which a β-arylethylamine is heated in the presence of an aldehyde and acid
- Pictet & Cie, Geneva-based Swiss bank
- Pic-Pic, Piccard & Pictet, Swiss automobile