The suffix '-otomy' is derived from Greek τόμος (-tómos) 'cutting, sharp, separate'.

• Amniotomy – An incision created to accelerate labor.
• Androtomy – Dissection of the human body .
• Bilateral cingulotomy – Psychosurgery, treatment for depression and addiction .
• Bronchotomy – A procedure that ensures there is an open airway between a patient's lung/s and the outside world.
• Clitoridotomy – Plastic surgery of the clitorial hood.
• Coeliotomy – A large incision through the abdominal wall to gain access into the abdominal cavity
• Colpotomy – Extraction of fluid from the pouch of Douglas (a rectouterine pouch[1] posterior to the vagina) through a needle
• Cordotomy – Procedure that disables selected pain-conducting tracts in the spinal cord, in order to achieve loss of pain and temperature perception
• Craniotomy – A bone flap is temporarily removed from the skull to access the brain
• Cricothyrotomy – An incision made through the skin and cricothyroid membrane to establish a patent airway during certain life-threatening situations
• Escharotomy – Procedure used to treat full-thickness (third-degree) circumferential burns
• Episiotomy – Surgical incision of the perineum and the posterior vaginal wall
• Fasciotomy – Surgical procedure where the fascia is cut to relieve tension or pressure commonly to treat the resulting loss of circulation to an area of tissue or muscle
• Heller myotomy – Muscles of the cardia (lower oesophageal sphincter or LOS) are cut, allowing food and liquids to pass to the stomach
• Hymenotomy – Surgical removal or opening of the hymen
• Hysterotomy – Incision in the uterus, and is performed during a Caesarean section
• Laminotomy – The partial removal (or by making a larger opening) of the lamina.
• Laparotomy – Large incision through the abdominal wall to gain access into the abdominal cavity
• Lithotomy position – Medical term referring to a common position for surgical procedures and medical examinations involving the pelvis and lower abdomen
• Lobotomy – Cutting or scraping away most of the connections to and from the prefrontal cortex, the anterior part of the frontal lobes of the brain.
• Meatotomy – Form of penile modification in which the underside of the glans is split
• Myotomy – Procedure in which muscle is cut
• Osteotomy – A bone is cut to shorten or lengthen it or to change its alignment
• Phlebotomy – An incision in a vein with a needle
• Pulpotomy – Removal of a portion of the pulp, including the diseased aspect
• Radial keratotomy – a refractive surgical procedure to correct myopia
• Sphincterotomy – Treating mucosal fissures from the anal canal/sphincter
• Thoracotomy – Incision into the pleural space of the chest
• Thyrotomy – Incision of the larynx through the thyroid cartilage
• Tracheotomy – An incision on the anterior aspect of the neck and opening a direct airway through an incision in the trachea (windpipe)
• Trans-orbital lobotomy – Cutting or scraping away most of the connections to and from the prefrontal cortex, the anterior part of the frontal lobes of the brain

• Dichotomy
• False dichotomy
• Ousterhout's dichotomy
• Trichotomy
• Trichotomy property

• List of surgical procedures
• List of -ectomies
• List of -ostomies