Cornel Dumitru Puchianu (born 27 October 1989 in Brașov) is a Romanian winter-sportsman who debuted in biathlon in 2012.

He had previously competed in cross-country skiing.

He won the bronze medal in sprint at the Summer Biathlon World Championships 2021.

All results are sourced from the International Biathlon Union.

This Romanian biographical article relating to biathlon is a stub.