John David O'Neill

John David O'Neill passed away on September 14, 2025. He is survived by his beloved children John (Damara), Kim (Tony), Matthew, Kelly (Derek), Megan, Kevin (Erica), and Daniel; 10 grandchildren; his sisters Denise, Judy (Doug), Mary (Tom), and Patty (Mark); and his former wife Diane. He is a beloved uncle, cousin, and friend to many who will miss him deeply.

He is preceded in passing by his parents John and Virginia O'Neill, his brother Tim, and his sister Sandy.

John was proud to be Irish and loved the city of Chicago. He was always eager to enjoy a slice of deep dish pizza and watch a Cubs game.

Family and friends will gather for visitation on Friday, September 26, 2025 from 10:30AM-12:30PM at Warren Funeral Home, 1475 N. Cemetery Road, Gurnee, IL. The funeral service will begin at 12:30PM, followed by interment at Warren Cemetery.