Ioannis "John" Tselios, 79 died November 15, 2025. He was born September 2, 1946 in Argrinio, Greece. Son of the late Efthemios and Ekaterina Tselios. He served in the Greek army for 18 months. John arrived in America and ran a diner with his father called "Texas Lunch" in New Britain,CT. John relocated to Boston, MA with his family and opened a diner called "The Copper Skillett" on Boylston St. Later in life John worked at the iconic "Milk street Florist" for his late brother Konstantinos "Gus" Tselios. John greeted every customer with an infectious smile and jovial attitude. John was a pillar of the Greek community and a die-hard Boston sports fan. John loved dancing, laughing and being in the company of his family. He is survived by his children Katerina, Penny, Themio and Louie; his siblings Peter Tselios, Maria Aspros, Penny Antonaros and Sophia Eliopoulos; eight grandchildren and three great grandchildren; twenty-one nieces and nephews and a host of many that will miss him dearly. John was predeceased by his brother Paul Tselios. Visitation on November 24th 2025 from 10 to 12 will be immediately followed by the funeral service to be held at Saint Nectarios Greek Orthodox Church; 39 Belgrade Ave, Roslindale Massachusetts.