Dianna Marie McCarthy

Dianna Marie (Tramontozzi) McCarthy, 54, of Marlborough, Massachusetts, passed away peacefully surrounded by her loving family on March 11, 2026, following decades of long term complications from cancer treatment earlier in her life.

Born in Newton, Massachusetts on June 5, 1971, Dianna was the beloved daughter of Gerald M. Tramontozzi of Marlborough and the late Joanna M. (Molla) Tramontozzi, who passed away in October 2025 following complications from cancer. Dianna grew up in Marlborough and remained closely connected to the community throughout her life.

Dianna was a 1989 graduate of Marlborough High School and went on to earn her bachelor's degree from Assumption College in 1993. Following college, she attended the New England School of Law in Boston. Her professional career included work as a Research Analyst and Paralegal for the Commonwealth of Massachusetts, and most recently she worked as a Project Accountant at Senko Advanced Components.

She was the beloved wife of the late Kevin McCarthy, who passed away suddenly from a heart attack in April 2005. At the time of his passing, their three sons, Patrick J. McCarthy, Gerald F. McCarthy, and William F. McCarthy, were just 6, 4, and 2 years old. With strength, determination, and unwavering love, Dianna raised her boys as a devoted single mother.

Above all else, Dianna was a loving and dedicated mother to Patrick, Gerald, and William, all of Marlborough. Her children were her whole world, and she cherished every moment spent supporting them. She especially loved watching them play hockey and took great pride in cheering them on throughout the years. She was also a proud and loving grandmother to her granddaughter, Alaiyah, daughter of Patrick. Dianna also had a beloved dog named Marchy, who brought her great comfort and companionship.

In addition to her father and children, Dianna is survived by her brother, Mark A. Tramontozzi of Marlborough, his wife Liz, and their children Anthony J. Tramontozzi and Elena G. Tramontozzi; and her brother, Brian W. Tramontozzi of Waltham, his wife Soraya, and their children Dominic J. Tramontozzi and Joseph A. Tramontozzi. She also leaves many extended family members and dear friends who will remember her for her strength, kindness, and devotion to her family.

Dianna faced many health challenges throughout her life with remarkable courage and resilience. Despite those challenges, she lived with strength, grace, and an enduring love for her family. She was also known among family and friends for her amazing chicken wings, a small tradition that brought people together and will be fondly remembered. Her warmth, determination, and quiet strength will be greatly missed by all who knew and loved her.

Visiting hours will be held at Magni Funeral Home, 365 Watertown St., Newton, MA 02458, on Thursday, March 19, 2026, from 4:00 p.m. to 7:00 p.m. A funeral Mass will be celebrated on Friday, March 20, 2026, at 10:30 a.m. at Our Lady Help of Christians Church, 573 Washington St., Newton, MA.

In lieu of flowers, the family kindly requests memorial contributions to the GoFundMe established in Dianna's memory. These donations will help her sons Patrick, Gerald, and William pay off the mortgage on their family home and cover funeral and other immediate expenses. Any amount, no matter how small, will be greatly appreciated and will provide meaningful support as they honor their mother's legacy. Donations may be made at: https://gofund.me/8d4f2b31b