Elshan Moradi Abadi (Persian: الشن مرادی ابدی, born 22 May 1985) is an Iranian-American chess grandmaster.

When he was 16 he won the 2001 Iranian Chess Championship with a score of 10/11, ahead of Ehsan Ghaem Maghami.

In 2009 he tied for 3rd–8th with Anton Filippov, Vadim Malakhatko, Merab Gagunashvili, Alexander Shabalov and Niaz Murshed in the Ravana Challenge Tournament in Colombo.

Moradi in February 2016, became the second Iranian chess player to reach 2600 Elo after Ehsan Ghaem Maghami, and in the following month, he scored 2603 in his own personal record.

In the same year, he won the Washington International tournament ahead of Gata Kamsky and Ilya Smirin.