AbstractPregnant patients have an increased risk of torsion compared to that seen in nonpregnant patients, and those with larger cysts undergo torsion more frequently, which can cause obstructions during labor. The risks associated with emergent surgery are higher than those with elective surgery. Laparoscopic surgery can be safely performed during pregnancy. Single-port laparoscopic surgery is reported to be a minimally invasive laparoscopic technique. We report three cases of ovarian dermoid cysts, which were successfully removed during pregnancy through elective single-port laparoscopic surgery. In all cases, imaging showed a dermoid cyst and the cyst size was greater than 6 cm. All patients requested the surgery. The ovarian cysts were successfully removed by single-port laparoscopy without additional ports and without intra- or postoperative complications. All pregnancies progressed well and delivered vaginally at full term. The single-port laparoscopic approach is useful for removing ovarian cysts during pregnancy.