We report a case of a foramen of Morgagni hernia repaired by a single-port laparoscopic technique. A 20-month-old (10 kg) boy underwent a 97-minute procedure through a 15-mm umbilical incision and had no complications. Although other pediatric single-port case series have been reported in the literature, this case represents the first time a diaphragmatic defect has been addressed. Moreover, unlike previous experiences that involved procedures of resection (appendectomy, cholecystectomy, etc), this case required operative repair and reconstruction with intracorporeal suturing via a single-access site. Advancement in instrument and port technology makes such procedures feasible in pediatric patients.