Sibley is an English gender-neutral name that carries the beautiful meaning of "Brother Or Sister." This name has a rich history and is associated with various places and landmarks, including the Sibley Peninsula in Ontario, Canada, and several towns and counties across the United States. Additionally, the name is connected to Sibley Memorial Hospital in Washington, D.C., and the Robert Sibley Volcanic Regional Preserve in California. In addition to its use as a personal name, Sibley is also linked to the Sibley–Ahlquist taxonomy of birds and former retail chains. The name Sibley holds a special significance as it embodies the essence of sibling relationships, making it a meaningful choice for individuals seeking a name that reflects the bond between brothers and sisters.