Iranian frigate Alvand (), a British-made Vosper Mark V class frigate (also known as Alvand class frigate), was commissioned in 1971 as part of a four-ship order and is the lead ship of the class and flagship of the Iranian Navy. The ship was originally called Saam, named after the Saam class (which is named after Sām, a mythical hero of ancient Persia, and an important character in the Shahnameh) as it was the lead-ship. But after the Islamic Revolution the class was renamed to Alvand class, after the Alvand mountain-chain and so this ship, being the lead ship was renamed Alvand.