Boris S. Zosiak, a longtime resident of Greenwich, Connecticut, passed away peacefully on March 10, 2026, at the age of 76.
Born in Germany on September 3, 1949, to Taras and Christine Zosiak, Boris later made his home in Greenwich, where he built a life centered around family, hard work, and community. He attended J. M. Wright Technical High School, where he learned the plumbing trade that would become his lifelong profession. Known for his strong work ethic and skill, Boris worked for many years as a plumber, taking pride in helping others and fixing just about anything that needed repair.
Above all else, Boris was devoted to his family. He was the beloved husband of Kathleen A. Zosiak (née Molinari) and a proud and loving father to Kevin Zosiak (Amy), Melissa Slavin, and Brian Zosiak. Nothing brought him more joy than being a grandfather to Lucas Slavin, Ashley Zosiak, and Tyler Zosiak, who will remember him for his warmth, humor, and the special moments they shared together.
Boris is also survived by his sisters, Heidi Zosiak and Barbara DeFilippo (Michael), along with extended family and many friends who will miss his presence and kindness.
Family and friends will gather on Monday, March 16 from 9:00am to 10:00am at Coxe &
Graziano Funeral Home in Greenwich. A Mass of Christian Burial will be celebrated at 10:30am at Sacred Heart Roman Catholic Church, followed by interment at St. Marys Cemetery.
Boris will be remembered for his dedication to his family, his pride in his work, and the many lives he touched throughout the years.
In lieu of flowers, memorial donations may be made to the American Cancer Society.