The name Foucault can refer to:

• Michel Foucault (philosopher)
• Léon Foucault (physicist)
  • Foucault pendulum
    • Foucault's Pendulum (book), a 1988 book by Umberto Eco
  • Foucault current, electromagnetic phenomenon also known as eddy current
  • Fizeau-Foucault apparatus
  • Foucault (crater), a small lunar impact crater
• Annick Foucault, the real name of a French professional dominatrix
• Jeffrey Foucault (musician)

The name Foucauld could refer to Charles de Foucauld.

da:Foucault de:Foucault es:Foucault eo:Foucault fr:Foucault gl:Foucault ko:?? hr:Foucault (razdvojba) it:Foucault he:???? nl:Foucault ja:???? no:Foucault pl:Foucault pt:Foucault ru:???? simple:Foucault sk:Foucault sl:Foucault fi:Foucault sv:Foucault tr:Foucault uk:????