Henry Chavancy (born 22 May 1988 in Strasbourg) is a French rugby union player.

During the 2008/2009 season he played 20 games and become French Champion of Pro D2 with his team.

In 2016, he won Top 14 by defeating Toulon in the final at Camp Nou in Barcelona, before an attendance exceeding 99,000 people.

In June 2010 he was selected in the French team A for the Churchill Cup[4] in the United-States.

Chavancy made his debut against Ireland in the 2017 Six Nations replacing Rémi Lamerat in the 59th minute of a 19–9 away loss.