Of Williamsville, NY entered into rest January 25, 2026. Beloved husband of Catherine M. (nee Mathews) Costanza; devoted father of Anthony (JoAnna) Matteo and Mary Catherine (Michael Bermel) Costanza; dear brother of James Costanza; special uncle to Kelly Costanza and the late Josh Costanza; also survived by many loving nieces, nephews, great-nieces, and great-nephews. David was amazingly kind and a friend to many, he will be missed dearly. Relatives and friends may visit the Lombardo Funeral Home (Northtowns Chapel) 885 Niagara Falls Blvd. near Eggert/Sheridan Dr. on Sunday from 1-5 PM. A prayer service will be held Monday morning at 10 o'clock. Interment Acacia Park Cemetery. Condolences may be made on this page.