Matias Cahais is an Argentine football central defender. He was born on December 24 1987, in the city of Moron in the Buenos Aires Province of Argentina. He currently plays for Boca Juniors of the Primera Division Argentina.
Cahais is a product of the Boca Juniors youth team, he made his debut for the first team at the age of 17 on June 26 2005 in a 0-0 draw with Quilmes Atletico Club.
Cahais has represented the Argentina national football team at Under-17 and Under-20 levels. He made 20 appearances for the U-17 team, scoring 4 goals. In 2007 he was selected to play for Argentina at the South American Youth Championship in Paraguay where he scored 2 goals. He also represented the U-20 team at the 2007 FIFA U-20 World Cup. As the captain, he led the Argentine team to victory.