Ryuji Ryuuzaki (リュウジ・リュウザキ) is a fictional character from the manga Mobile Suit Gundam AGE: Treasure Star.
A Federation mobile suit pilot from the future who developed the AGE-1 Normal Daiki Version from the data of his wrecked RGE-G1100 Adele. In 105 A.G., he went missing during a battle against the invading Vagan fleet, leaving behind the said mobile suit. It's revealed that he is from the future timeline and got thrown to the past before the start of the manga. He built replicas of the AGE Device, AGE Builder and the Gundam from his memory to combat the Vagan, which were passed down to Daiki. His relation to the Asuno family in the future is unknown.