IRIS Abu Mahdi al-Muhandis is an Iranian missile corvette with hull number PC313-01.

The lead ship is named after Abu Mahdi al-Muhandis who was the former deputy head of Iraq's Popular Mobilization Units, and was assassinated alongside Qasem Soleimani in the US drone strike on 3 January 2020.

Abu Mahdi al-Muhandis, like the Shahid Soleimani-class corvettes profits from a catamaran design and features stealth capabilities, aimed at eluding enemy detection, but is half the size of the latter.

The special design of the missile boat makes it difficult for enemy radar and reconnaissance systems to detect its presence in the waters.

[2] Unlike the other two HARTH classes in service with IRGC, this ship lacks proper aviation facility and can only handle VTOL unmanned aerial vehicles (UAVs).