Dr. Renée Bennett O'Sullivan, M.D., F.A.C.S., the first female plastic surgeon in New England, passed away on May30, 2026, at 96 years of age, leaving behind a legacy of extraordinary breadth, grace, intellect, service, and humanity. She was a pioneering plastic and reconstructive surgeon, missionary surgeon, teacher, devoted mother and grandmother, trusted colleague, civic servant, historian, sailor, and friend to all.

Born on July 13, 1929, at Boston Lying-In Hospital in Boston, Massachusetts, Dr. O’Sullivan was the daughter of Paul Lloyd O’Sullivan and Jessie Emily Bennett O’Sullivan. From an early age, she demonstrated a brilliant mind, deep curiosity, and love of learning that would shape her distinguished career and lifelong pursuits.

Affectionately known to many as "Bunny," she lived a remarkably vibrant and full life. She was a force of nature whose life elevated every room she entered and every person she touched. She gave generously, loved deeply, worked tirelessly, and carried within her a heart larger than life itself. To know her was to be inspired by her; to be cared for by her was to experience medicine as both science and grace.

Dr. O’Sullivan’s path to medicine was shaped early by her mother, Jessie Emily Bennett O’Sullivan, a registered nurse at Massachusetts General Hospital. There, Jessie formed a close friendship with her mentor, “Aunt Letitia” Leland, creating a bond between the families that has lasted for generations. Family folklore holds that when Bunny was ten, she watched surgeon Dr. George Adams Leland carve the Thanksgiving turkey with such precision that she proclaimed she would become a surgeon.

After attending the Walnut Hill School for the Arts, she graduated from Bennington College in Vermont, with a Bachelor of Arts degree in 1951. Knowing she wanted to pursue a medical career, at 21 years old, she wrote her first paper with Nobel Prize winner Dr. Albert Szent-Györgyi on muscle physiology. She went on to earn her Doctor of Medicine degree from the Women’s Medical College of Pennsylvania in 1955, where she received the Dean’s Award for the highest average in the senior class and the Professor of Pediatrics Award.

Her formal medical training placed her among some of the most important medical institutions and teachers of the twentieth century, starting in 1955 completed in 1962. She served as an Intern in Pathology at Children’s Hospital Medical Center, 1955 to 1956. She was an Assistant Resident in Pediatrics at Massachusetts General Hospital, 1956 to 1957. She became Assistant Resident at Children’s Hospital Medical Center in Boston and served as a Teaching Fellow at Harvard Medical School, 1957 to 1958. During these years, her rotations with Dr. Gross in pediatric surgery and with Nobel Laureate Dr. Joseph Murray, as a member of the cardiac “Pump team” deepened her conviction to become a surgeon, fueling the pivot to complete her surgical training through the Boston VA which allowed her to train on the Harvard Surgical Service in addition to all the Boston Hospitals: MGH, Brigham & Women’s, Children’s, Dana Farber, Boston VAMC and Boston City Hospital.

She then pursued plastic and reconstructive surgery at New York Hospital–Cornell Medical Center, under Dr. Herbert Conway, to graduate in 1962, as the first female plastic and reconstructive surgeon in New England.

At the completion of her medical training, Dr. O’Sullivan spent three years in Indonesia, operating on countless patients with congenital anomalies, tumors, burns, cleft lips and palates, to name a few. Faced with endless lines of patients filling the streets in the villages, Dr. O’Sullivan needed to re-sterilize her own surgical instruments and sponges in order to operate on as many patients as possible each day. While there, she also advanced reconstructive techniques mentoring the local physicians and she founded a burn clinic where she was visited by First Lady, Jacqueline Kennedy.

She returned to Boston in 1965, to establish her practice in Plastic & Reconstructive surgery where she served as surgeon and teacher to countless residents, nurses and fellows while on staff at the Fifth Harvard Surgical Service, Harvard Medical School, Massachusetts Institute of Technology, Mount Auburn Hospital, New England Medical Center Hospital, Saint Elizabeth’s Hospital, Emerson Hospital, Faulkner Hospital, The Beth Israel Deaconess Hospital, MetroWest Medical Center, and the Newton-Wellesley Hospital. She served on the Harvard admissions committee for over 20 years and advocated for women in medicine throughout her career. For more than 30 years, she took call for traumatic injuries across these hospitals and the Harvard Surgical Service caring for patients in an era before seatbelts, often working through the night to restore injured faces with the precision of both surgeon and artist before returning to her scheduled surgeries the next day.

Dr. O’Sullivan’s non-clinical involvement extended far and wide. As a member of the American Society of Plastic Surgery and The American Society of Aesthetic Plastic Surgery she was honored to be selected as a Citizen Ambassador with the People to People Plastic and Reconstructive Surgery Delegation to Eastern Europe and the Soviet Union. She went on to be a founding member of, and served as Vice President of, Vice President for the Massachusetts Chapter of the American Trauma Society, a Charter member of the Northeastern Society of Plastic Surgeons, a Trustee of the Boston County Medical Library, a Trustee of the Ada Draper Trust; a Delegate to the Massachusetts Medical Society; a member of many local & national medical, plastic & reconstructive societies; and a Fellow of the American College of Surgeons. She wrote numerous articles to advance surgical technique.

In 2004, Dr. O’Sullivan received the Massachusetts Medical Society’s Special Award for Excellence in Medical Service, recognizing her remarkable compassion and dedication to the medical needs of her patients and community.

Outside of the operating room, Dr. Renée Bennett O'Sullivan served for decades as a Wellesley Town Meeting Member, on the Board of Directors for the Woods Hole Golf Club, the Quissett Yacht Club, the Woods Hole Yacht Club, and the Harvard Club. She was a founding member of the “White Mountain Ski Runners”.

She wrote about the Quissett Yacht Club in The Book of Falmouth, published by the Falmouth Historical Commission and was as Quissett Yacht Club Historian for years.

Beyond her professional achievements, “Bunny” took great joy in every part of life: sailing, the sea, athletics, music, musical theater, travel, family history, animals, and chocolate. At nine years of age, she began racing her wooden Herreshoff 121⁄2 at both Quissett and Woods Hole yacht clubs, winning ribbons and trophies and gathering a lifetime of stories. One favorite stories was of a race in which her English Setter jumped overboard, so Bunny simply sailed around, picked him up, and still won!

She loved classical music and musical theater, especially the wit and melodies of Gilbert and Sullivan, and she always held a special fondness for songs “with a melody.” For 50 years, she was a devoted member and contributor to the College Light Opera Company at Highfield Theatre in Falmouth, where she found joy in music, performance, tradition, and the company of dear friends. In that same generous spirit, she opened her home to young CLOC performers, giving them a place to train while helping ease the financial burden of their early careers.

She especially loved welcoming “orphans” into her life, whether offering a place at her holiday table, a ride to a stranger caught in the rain, or a room in her home to a friend of a friend. Her hospitality and generosity were endless.

Above all, Bunny’s greatest joy was being in the presence of those she loved: her children, her friends, and her beloved English Setters, and her cherished cat, Isabella.

Dr. Renée Bennett O’Sullivan lived a life driven by extraordinary determination, optimism, and moral clarity. She found a path where others saw obstacles and brought that same resolve to her work, her family, her friendships, and her service. She leaves behind a legacy written not only in honors, publications, and professional distinction, but in healed bodies, restored lives, grateful patients, inspired physicians, devoted family, and countless hearts made better by having known her.

Dr. Renée Bennett O'Sullivan leaves behind a legacy written not only in institutional appointments, publications, and honors, but in healed bodies, restored lives, grateful patients, inspired physicians, devoted family, and countless hearts made better by having known her.

Dr. Renée Bennett O'Sullivan is survived by her three daughters Rebecca (George) Bennett O’Sullivan Hunnewell, M.D., Jennifer Letitia, M.D., and Kimberley Lloyd O’Sullivan, M.D., and her grandchildren Nicholas (Paola) and Jessica Hunnewell; Kell, Tia and Jeffrey Pogue; and Timothy, Alexander and Sophie Hall O’Sullivan.

The memorial service for Dr. Renée Bennett O'Sullivan will be held on June 13, 2026 at the St. Andrew’s Episcopal Church in Wellesley, Massachusetts, at 11:00 AM. Services will be livestreamed at St. Andrew's Wellesley

In true “Bunny” spirit, all are invited to dress in beautiful colors so the church may look like a bouquet of flowers as we bid farewell and honor her exemplary life.

In lieu of flowers, the family welcomes donations in Dr. Renée Bennett O’Sullivan’s name to any program or organization that reflects her legacy of healing, learning, artistry, service, and love of animals. For those seeking inspiration, causes and institutions she held dear include English Setter and cat rescue, elephant conservation programs, the College Light Opera Company, Walnut Hill School for the Arts, Bennington College, Drexel University College of Medicine, and New York-Presbyterian/Weill Cornell Medical Center.