Ronan Lamy Chappuis (born 10 September 1993 in Lons-le-Saunier) is a French ski jumper.

Lamy Chappuis competed at the 2014 Winter Olympics for France.

He placed 33rd in the normal hill qualifying round, and 40th on the first jump of the final, failing to advance.

[1] Lamy Chappuis made his World Cup debut in November 2012.

This biographical article relating to French ski jumping is a stub.