Hosseinieh Azam Zanjan Mosque (Persian: حسینیه اعظم زنجان) is one of the Shia Islam religious sites located in Zanjan. This place dates back more than a century ago. This Hoseyniyeh by two people named Mirza Muhammad Taqi and Haj Mirza Babai was dedicated and since was held there since then on the 8th of Muharram mourning a certain way.