Mary Ann Costanza, 90, Harmony Township, passed away peacefully at her home on July 2nd, 2025.

She was born on October 31st, 1934, a daughter of the late Felici and Ann Bufalini. In addition to her parents, she was preceded in death by her beloved husband, Anthony J. “Tete” Costanza, her sister, Margaret DeLizio and her brothers, Kelly and Richard Bufalini.

She is survived by her loving children, Ken (Stephanie) Costanza, Pam “Tammy” (David) Harsch, and Ron (Lisa) Costanza, her brother-in-law, Willie Costanza, her sister-in-law, Sherry Costanza, her grandchildren: Erica (Katie) Harsch-Colpitts, Nathan (Valeriya) Harsch, Aaron Harsch, Marcus (Julia) Costanza, Ryan (Amanda) Costanza, Kimberly (Evan) Bowles, Jesse (Sophath) Hinh, and Lauren Metcalfe; as well as her great-grandchildren: Vienna, Mia, Briella, Maria, Marco, Elio, Charlotte, and Emmy along with many cousins, nieces, nephews, a special niece, Sandy Bufalini, a cherished friend, Linda Garbini, and her caregiver and friend, Desi.

Mary Ann was deeply devoted to her Catholic faith. She was a proud member of the Christian Mothers who taught C.C.D. at St. Veronica Church. She was active in the Eagles Nest 1365 Ladies Auxiliary. Known for her vibrant personality, she spoke her mind. She loved dressing up and decorating for every holiday and was especially talented in the kitchen. She was a masterful baker and gifted cook who found joy in preparing meals and gathering her family around the table. Even on her final day, she had a meal ready for her loved ones: one last expression of the love she so freely gave.

Family and friends will be received on Sunday, July 6th, from 2–4 P.M. and 5–7 P.M. at Alvarez-Hahn Funeral Services and Cremation, LLC, 547 8th Street, Ambridge. Departing prayers will be offered at the funeral home on Monday, July 7th at 10:00 A.M., followed by a Mass of Christian Burial at 10:30 A.M. at Good Samaritan Church, 725 Glenwood Avenue, Ambridge. Interment will follow at Mt. Olivet Cemetery in Hopewell.