Aerin is a beautiful and elegant name of Celtic origin that means "of the sea" or "ocean-related." It has a timeless quality and a sense of grace and sophistication. People named Aerin are often seen as imaginative, intuitive, and empathetic, with a strong connection to the natural world. They possess a calming presence and are known for their ability to bring peace and harmony to those around them. Overall, Aerin is a name that exudes a sense of serenity and tranquility.