IPA: [eʁɛ̃] - 4 August 1966 – 31 March 2019) was an Italian luger and mountain bike racer.

A natural track luger, he won four medals at the FIL World Luge Natural Track Championships with two gold in the doubles (1986, 1992) and two silvers at the 1990 event (singles, doubles).

Hérin also won three medals in the men's doubles event at the FIL European Luge Natural Track Championships with one gold (1993) and two silvers (1985, 1987).

He won the UCI mountain bike Downhill World cup in 1997 racing for the Sintesi Verlicchi team.

In 2016 he returned to racing at the age of 50 and won the Mountain Bike Downhill Masters World Championships in Val Di Sole, Italy.