Aiselyn Sia is a professional footballer from PHI and is currently 18 years old. At international level, he features for Philippines U17 Women. His main role on the pitch is Defender. He measures 170cm in height and weighs 62kg.

Across the AFC U17 Women's Asian Cup 2023-2024, Aiselyn Sia appeared in 3 matches and averaged 0 tackles, 1.7 interceptions, 0.7 clearances, and 0 blocked shots per game.