Cleft palate-lateral synechiae syndrome (CPLSS) is an extremely rare congenital malformation syndrome with undetermined etiology, characterized by a cleft palate and lateral intraoral synechiae linking the free borders of the palate to the mouth floor. We report a case of a female neonate, admitted for suckling difficulties with a cleft lip and palate associated to multiple lateral intraoral synechiae. Resection of the synechiae allowed oral feeding. Cleft palate-lateral synechiae syndrome is an exceptional syndrome as only seventeen cases have been reported in the literature. Synechiae can be isolated or more frequently in association with other congenital anomalies such as cleft lip and/or palate. These synechiae can cause functional deficits, especially in the respiratory and feeding tracts, language disorders or recurrent otitis. Although it is exceptional, this malformative entity must be known by medical practitioners in order to set up a well-adapted therapeutic protocol.