| Mehdi Marandi | |
| Fullname: | Mehdi Marandi |
| Birth Date: | May 12, 1986 |
| Birth Place: | Qazvin, Iran |
| Height: | [1] |
| Weight: | 69kg (152lb) |
| Spike: | 2.95 m |
| Block: | 2.80 m |
| Position: | Libero[2] |
| Currentclub: | Paykan Tehran VC |
Mehdi Marandi (Persian: مهدی مرندی, born 12 May 1986 in Ghazvin) also known as Siamak Marandi or Mahdi Marandi, is an Iranian volleyball player who plays as a libero for the Iran national team. He competed at the Rio 2016 Summer Olympics.[3]