Santiago Phelan (born March 31, 1974, in San Isidro, Buenos Aires) is an Argentine retired rugby union footballer.
On March 13, 2008, Phelan was named as the coach of the Argentine rugby union team, filling the vacancy left by Marcelo Loffreda.
[1] On October 21, 2013, Phelan stepped down from his post as Los Pumas head coach with immediate effect, one year early from the end of his contract.
He led the Pumas to the 2011 Rugby World Cup knockout stage, but lost to hosts New Zealand in the Quarter Finals.
In 2012, Phelan led Argentina into their debut year in The Rugby Championship, and proved hard to beat when home.