Chahak (Persian: چاهك) may refer to:

• Chahak, Bushehr
• Chahak, Chaharmahal and Bakhtiari
• Chahak, Anbarabad, Kerman Province
• Chahak, Jiroft, Kerman Province
• Chahak, Manujan, Kerman Province
• Chahak, Qaleh Ganj, Kerman Province
• Chahak, Kohgiluyeh and Boyer-Ahmad
• Chahak, Qom
• Chahak, Khoshab, Razavi Khorasan Province
• Chahak, Dalgan, Sistan and Baluchestan Province
• Chahak, Eskelabad, Khash County, Sistan and Baluchestan Province
• Chahak, South Khorasan
• Chahak, Yazd
• Chahak Rural District, in Yazd Province