The École Polytechnique is a French grande école founded in 1794 to train students in sciences and technology.

École Polytechnique may also refer to the following schools:

• National Polytechnic School (Algeria), or École Nationale Polytechnique (ENP), an engineering school in Algiers

• Polytechnique Montréal (formerly École Polytechnique de Montréal), an engineering school affiliated with the Université de Montréal

• École Polytechnique de l'Université de Nantes, a French grande école
• Ecole Polytechnique de l'Université d'Orléans, a French engineering school

• École Polytechnique Fédérale de Lausanne, a Swiss research university

• École Polytechnique massacre, a 1989 mass shooting targeting female students of École Polytechnique de Montréal
• L'Ecole Polytechnique Monument, a monument at the United States Military Academy, donated by students from the École Polytechnique
• Polytechnic (disambiguation)

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