Martyrs' Square may refer to:
- Martyrs' Square, Beirut, Lebanon
- Martyrs' Square, Brussels, Belgium
- Martyrs' Square, Damascus, a.k.a. Marjeh Square, Syria
- Martyrs' Square, on Quwatli Street in Homs, Syria
- Martyrs' Square, Tripoli, Libya, known historically by the names Green Square, Independence Square, and Piazza Italia
- Piazza dei Martiri, a martyrs' monument square in Naples, Italy
- Place des Martyrs, Luxembourg, a garden square in Luxembourg City, Luxembourg