Dmitrii Shamaev (born 30 June 1995) is a Russian-born Romanian biathlete.

[1] Dmitrii Shamaev started his international career at the 2014 World Youth Championships in Presque Isle, and immediately won his first individual medals in sprint and pursuit, behind Sean Doherty and Marco Groß.

He was also victorious with the youth relay team of Yaroslav Kostyukov and Viktor Plitsev.

In the newly created IBU Junior Cup, Shamayev finished in the top 10 twice in 2015/16, while his third relay gold came at the 2016 Junior World Championships with Viktor Plitsev, Nikita Porshnev and Kirill Streltsov.

He last competed for his native country at the Summer Biathlon World Championships in the same year.