Of Sarasota, Florida, formerly of Cambridge, Mass., passed away on March 5, 2018. Beloved husband of Claire (Lembo) Kostopoulos. Devoted father of Kate Kostopoulos and Becky Kostopoulos. Loving brother of Anthony Kostopoulos and his wife Sylvia, William Kostopoulos, and the late Alec and James Kostopoulos. Brother-in-law of Alexandra Kostopoulos, and the late Helen Kostopoulos. Also survived by many nieces, nephews, relatives and friends. Calling Hours will be held in the George L. Doherty Funeral Home, 855 Broadway (Powder House Sq.) SOMERVILLE, MA on Sunday, March 11th from 2:00pm to 6:00pm. Relatives and friends invited to attend. In lieu of flowers, donations in his memory may be made to the National Hellenic Society, 85 S.Bragg St., Ste 201, Alexandria, VA 22312. A Funeral Service will be held in St. Athanasius The Great Greek Orthodox Church, 4 Appleton St., Arlington, Mass. on Monday morning, March 12th at 10:00AM. Relatives and friends are respectfully asked to please meet at church. Services will conclude with burial at Mt. Auburn Cemetery.