Dimitrios Kontogiannis age 80, of Mundelein, Illinois passed away Tuesday, November 18, 2025. He was born in Sotaina, Greece. Loving husband of 55 years to Vasiliki nee Patouhas. Devoted father of George (Jessica) Kontogiannis, Alexandra (Eli) McLean, and Efthimia (William) Harris. Cherished Papou of Dimitrios and Anastasia Kontogiannis, and Nicholas McLean. Fond brother of Maria (Panagiotis) Manetas, Haralambos (Aphrodite) Kontogiannis, and the late Theodoros (the late Martha) Kontogiannis. Loving son of the late George and Alexandra nee Karamanos Kontogiannis. Kind brother-in-law of Dimitrios (Maureen), John (Crystal) Patouhas, and Veatriki (Panagiotis) Theodoropoulos. Fond uncle, cousin, and friend of many. Family and friends will meet for visitation Friday November 21, 2025, 11:00 am. until the time of funeral service at 12 noon at Ascension of Our Lord Greek Orthodox Church, 1207 Riverwoods Rd. Lincolnshire, IL 60069. Interment to follow at Vernon Township Cemetery, Lincolnshire, Illinois. In lieu of flowers, contributions in his memory to Ascension of Our Lord Greek Orthodox Church, 1207 Riverwoods Rd. Lincolnshire, IL 60069, would be appreciated. Funeral arrangements handled by Chicago Greek Funerals- Dean S. Argiris, care of Kolssak Funeral Home. Leave a condolence, share a story or post a picture at funerals.pro or for further assistance please call 847-537-6600.