Cleft lip is among the most common congenital craniofacial anomalies, with significant implications for neonatal care, feeding, speech development, and psychosocial well-being. This chapter provides an in-depth overview of the incidence and prevalence of cleft lip. Various classification systems are discussed, including those based on anatomical location and embryological origin. The chapter outlines a multidisciplinary approach to management, emphasizing the importance of early diagnosis, coordinated care, and a structured treatment timeline from initial feeding support to surgical repair. This chapter aims to equip healthcare professionals with a clear framework for understanding and managing cleft lip in clinical practice.