Tahmasb Mazaheri (Persian: طهماسب مظاهری) is an Iranian politician who served as the Minister of Economic Affairs and Finance between 2001 and 2004, and then held office as the Governor of the Central Bank of Iran from 2007 to 2008.

Mazaheri was appointed minister of finance to the cabinet of Mohammad Khatami in 2001.

[1] Mazaheri's term ended in April 2004 and he was succeeded by Safdar Hosseini.

In January 2013, Mazaheri was interrogated at Düsseldorf Airport by German police due to not informing the authorities in advance that he carried a 300 million Venezuelan bolívar cheque (nearly $70 million).

[6][7] It was later noted that the cheque belonged to an Iranian building company to cover its expenses while building public housing in Venezuela and Mazaheri was bringing the check for the company.