IRX6 (Iroquois Homeobox 6) is a gene that encodes a transcription factor from the Iroquois homeobox family, known for its role in early embryonic development. It contributes to the formation and patterning of organs and tissues, particularly in the heart and craniofacial regions. Alterations in IRX6 may be linked to developmental abnormalities and are of interest in studies of congenital and craniofacial disorders.