Though born in France, Silva elected to play for Portugal, and represented the country at every youth level.
With the under-16s he appeared at the Tournoi du Val-de-Marne, featuring in all three group stage matches – however, after he was found to have done unauthorized training with Chelsea, he was suspended by the Portuguese Football Federation.
He played with the under-17 team as they attempted to qualify for the 2007 UEFA European Championship, being a regular as the side eventually fell short in the elite round.

On 30 January 2007, the Portuguese Federation announced that Silva would be participating in the 2007 Meridian Cup (for under-18 players) as the country's only representative, and he declared that he was "very proud to represent Portugal in a European selection".
However, prior to the start of the competition, he suffered an injury and was replaced by compatriot Romeu Ribeiro.

Silva was limited to only seven appearances with the Portuguese under-19s, due to his increased involvement with Sporting's first team.
He scored his first goal in the age group on 6 November 2007, in the first round of qualification for the 2008 European Championship against the Republic of Ireland; despite a 2–1 victory, Portugal failed to progress past the elite stages.

On 5 February 2009, Silva earned his first call up to the under-21 team under coach Rui Caçador, for a friendly match with Switzerland that was played five days later.
He started and played 78 minutes, before being substituted in a 3–1 win.
He was a regular participant in the qualification campaign for the 2011 European Championships, appearing in five out of nine matches and scoring in a 1–1 draw to Macedonia.
Though born in France, Silva elected to play for Portugal, and represented the country at every youth level. With the under-16s he appeared at the Tournoi du Val-de-Marne, featuring in all three group stage matches – however, after he was found to have done unauthorized training with Chelsea, he was suspended by the Portuguese Football Federation. He played with the under-17 team as they attempted to qualify for the 2007 UEFA European Championship, being a regular as the side eventually fell short in the elite round.
On 30 January 2007, the Portuguese Federation announced that Silva would be participating in the 2007 Meridian Cup (for under-18 players) as the country's only representative, and he declared that he was "very proud to represent Portugal in a European selection". However, prior to the start of the competition, he suffered an injury and was replaced by compatriot Romeu Ribeiro.
Silva was limited to only seven appearances with the Portuguese under-19s, due to his increased involvement with Sporting's first team. He scored his first goal in the age group on 6 November 2007, in the first round of qualification for the 2008 European Championship against the Republic of Ireland; despite a 2–1 victory, Portugal failed to progress past the elite stages.
On 5 February 2009, Silva earned his first call up to the under-21 team under coach Rui Caçador, for a friendly match with Switzerland that was played five days later. He started and played 78 minutes, before being substituted in a 3–1 win. He was a regular participant in the qualification campaign for the 2011 European Championships, appearing in five out of nine matches and scoring in a 1–1 draw to Macedonia.
Adrien Silva