Kelly Elizabeth Costa

Kelly Elizabeth Costa, 38, of Westchester, Illinois, passed away on July 12, 2026. Born on August 28, 1987, in Westchester, Kelly brought warmth, intelligence, and an unmistakable spark of humor to the lives of those around her from the very beginning.

Kelly was known for her quick wit, generous spirit, and the easy friendliness that made others feel comfortable in her presence. Intelligent and thoughtful, she approached life with curiosity and heart. She had a deep love for baseball and music, passions that brought her joy and connection with others. Above all, she treasured time with her fiancé, Chris Mazur, and her beloved dog, Ludo, who was a constant and faithful companion. Whether sharing a laugh, offering steady support, or simply being present, Kelly’s loyalty to her family and friends defined her. She could always be counted on, and those closest to her knew the depth of her commitment and care.

Family meant everything to Kelly. She was the cherished daughter of Joseph B. Costa and the late Maryann Kenny, and the beloved stepdaughter of Becky Costa. She shared a special bond with her brother, Joseph A. Costa, and held her fiancé, Chris, close to her heart. Kelly was also a wonderful bridesmaid in a family wedding, a role she embraced with enthusiasm and love—an example of how happy she was to stand beside those she cared about during life’s most meaningful moments.

Kelly will be remembered for her intelligence, her humor, and, most of all, her unwavering loyalty to the people she considered family and friends. Her presence brought comfort and laughter, and her absence leaves a space that cannot be filled. She will be deeply missed by those who knew and loved her.