Dennis J. Fitzgerald of Elmhurst, age 78. Beloved husband of Nancy, nee Sullivan; loving father of Brian (Barbara), Kevin (Jane), Erin and Jeremiah (Kyra) Fitzgerald; proud grandfather of Jack, Luke, Liam, Lily, Eleanore, Marty, Sean, Maura, Nora, Salma, Matéa, Gaél and Esmé; dear brother of Noreen, Jeremiah, the late Patrick and the late Kathleen "Teen"; fond uncle of many.

Dennis had a deep love for and commitment to Nancy and the family they built together. He found great joy in spending time with his children and grandchildren and spent countless hours watching them compete in the sports they loved. Dennis built a remarkable career defined by creativity, innovation, and human connection. After three decades in the advertising and marketing fields, he founded DesignCentrix, a trade show and live event company, and PanoScape, an interactive technology company. Both ventures embodied his passion, curiosity, and love of learning, as well as his deep interest in understanding people. Throughout his life and career, Dennis met—and remained connected to—many who were drawn to his personable nature, quick wit, gift for storytelling, and enduring sense of humor.

Family and friends will be received at the Conboy-Westchester Funeral Home, 10501 W. Cermak Rd., Westchester on Sunday, December 28, 2025 from 2:00 p.m. to 6:00 p.m. All to meet Monday at Ascension Catholic Church, 808 W. East Ave., Oak Park for a 10:00 a.m. Funeral Mass. Interment private. In lieu of flowers, memorials appreciated to Misericordia Home (www.misericordia.com). For funeral info 708-F-U-N-E-R-A-L.