Rear Adm. Habibollah Sayyari said the two Ghadir-class submarines were designed and manufactured by Iranian experts, the Islamic Republic News Agency reported.
The 120-ton submarines are extremely maneuverable, well-suited for missions in shallow waters and equipped with at least two torpedo tubes, RIA Novosti reported.
The Iranian navy now has 16 of the subs, first commissioned in 2007.
Iran has threatened to block the Strait of Hormuz, a critical shipping route for oil, in response to a Western embargo on Iranian oil exports.
Notable deaths of 2014 [PHOTOS]