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Sylvan (Japanese: オギン Ogin) is a minor character who appeared in Giratina and the Sky Warrior.
Sylvan was on a train with Shun, Taka, and Kako. She met up with Ash, Brock, Dawn, Shaymin, Layla, and Moose and listened to Moose's story of how he witnessed Shaymin's flower bearing once. Sylvan told them how people send Gracidea flowers to each other to express gratitude.
Shortly after, she witnessed Shaymin transform into its Sky Forme. She then explained to Ash, Brock, and Dawn how to reach the flower garden of Gracidea, as they were wanting to go there. Following this, the train was attacked by Zero's Magnemite, Magneton and Magnezone, but Ash, Dawn, and Shaymin were able to drive them off. She later said her goodbyes to Ash, his friends, and Shaymin as they set off on a ferry to Gracidea.