The following lists events that happened during 1856 in Qajar era.

Incumbents Monarch: Naser al-Din Shah Qajar

Births July 2 – Morteza Gholi Khan Hedayat, Iranian politician. July 22 – Kamran Mirza Nayeb es-Saltaneh, Iranian field marshal. ? – Ali-Qoli Khan Bakhtiari, Iranian revolutionary. ? – Javad Sa'd al-Dowleh, Iranian politician. ? – Mirza Mahmud Khan Hakim ol-Molk, Iranian politician and physician.

References