Marius Ninel Șumudică (born 4 March 1971) is a Romanian professional football manager and former player, who is currently the head coach of Liga I club Rapid București.

He went on to manage numerous sides both home and abroad, notably bringing Astra Giurgiu its first Liga I title in the 2015–16 season at his third stint with the club.

The European campaign was almost a success, as Astra stopped short of reaching the Europa League group stages after knocking out West Ham United in the third round, but lost to AZ Alkmaar in the play-offs.

[3] Despite his suspension, Astra kept their momentum during the play-offs, ending up in them being crowned Liga I champions for the first time in their history, also marking Șumudică's first domestic title as manager.

[5] In January 2021, following an away defeat in the Süper Lig against Sivasspor, the club announced that they had parted ways with the Romanian manager, following a few weeks of tension and public discussion about his contract.