Daniel J. De Leo, 47, of Quakertown, passed away Tuesday, April 13, 2021. He was the son of Theodore and Dianne (Carson) De Leo. He was the husband of Michelle (Williams) De Leo with whom he shared almost 18 years of marriage. He was recently promoted to the position of project manager for Cobham Defense. In his spare time, he loved focusing on his fitness, as he worked out almost daily. He also enjoyed playing bass guitar and was involved in a band for many years. He was an avid golfer, and enjoyed playing with his three dogs, Riley, Lacey, and Sadie. Daniel enjoyed relaxing by watching sports, particularly football, soccer and baseball. He also enjoyed playing video games, particularly sports games and World of Warcraft. In addition to his parents, he is survived by wife, Michelle, siblings, Theodore De Leo, Jr., Michael De Leo, David De Leo, Kristy Agdalane, and Steffany De Leo. He was the proud uncle to Kylie, Megan, Michael Jr., John, Leo, Salvatore, Nicholas, Victoria, Lizzy, Ashley, Nathan, Kelsie, and Owen. He was also survived by his in-laws, John and Elizabeth Williams, brother and sister in-law Jo Ann and Carl Wanamaker. Services will be held friday April 23, 2021 at Naugle Funeral and Cremation Service, 135 W. Pumping Station Rd., Quakertown, PA, at 11:00 AM. Friends may call from 10-11, prior to the service.