Dizaj or Dezej (Persian: ديزج), also rendered as Dizeh or Dizach, may refer to:

• Dezej, a city in Kurdistan Province, Iran

Ardabil Province

• Dizaj, Ardabil
• Dizeh, Khalkhal, Ardabil Province

East Azerbaijan Province

• Dizaj, Meyaneh, East Azerbaijan Province
• Dizaj, Osku, East Azerbaijan Province
• Dizaj-e Aqa Hasan, East Azerbaijan Province
• Dizaj Azim, East Azerbaijan Province
• Dizaj-e Hasan Beyg, East Azerbaijan Province
• Dizaj-e Hoseyn Beyg, East Azerbaijan Province
• Dizaj-e Jalu, East Azerbaijan Province
• Dizaj Khalil, East Azerbaijan Province
• Dizaj-e Leyli Khani, East Azerbaijan Province
• Dizaj-e Malek, East Azerbaijan Province
• Dizaj-e Mir Homay, East Azerbaijan Province
• Dizaj-e Parvaneh, East Azerbaijan Province
• Dizaj-e Qorban, East Azerbaijan Province
• Dizaj-e Reza Qoli Beyg, East Azerbaijan Province
• Dizaj-e Safar Ali, East Azerbaijan Province
• Dizaj-e Sefid, East Azerbaijan Province
• Dizaj-e Shur, East Azerbaijan Province
• Dizaj-e Talkhaj, East Azerbaijan Province

Hamadan Province

• Dizaj, Hamadan

Isfahan Province

• Dezej, Isfahan, in Dehaqan County

Markazi Province

• Dizaj, Markazi

Qazvin Province

• Dizaj, Qazvin

Semnan Province

• Dizaj, Semnan

West Azerbaijan Province

• Dizaj, Chaldoran, a village in Chaldoran County
• Dizaj-e Hatam Khan, a village in Chaypareh County
• Dizaj-e Aland, a village in Khoy County
• Dizaj-e Batchi, a village in Khoy County
• Dizaj Diz, a village in Khoy County
• Dizaj-e Herik, a village in Khoy County
• Dizaj-e Jamshid Khan, a village in Khoy County
• Dizaj-e Morteza Kandi, a village in Khoy County
• Dizaj, Naqadeh, a village in Naqadeh County
• Dizaj, Showt, a village in Showt County
• Dizaj, West Azerbaijan, a village in Urmia County
• Dizaj-e Dowl, a village in Urmia County
• Dizaj-e Naqaleh, a village in Urmia County
• Dizaj-e Fathi, a village in Urmia County
• Dizaj-e Rahim Pur, a village in Urmia County
• Dizaj-e Takyeh, a village in Urmia County
• Dizaj Rural District, in Khoy County