Ronald S. Colaizzi

1966 - 2025

Ronald S. Colaizzi, 59, of Pittsburgh, passed away on Sept. 14, 2025. He was born Aug. 15, 1966, to the late George and Marlene Colaizzi. Professionally, Ron dedicated 32 years of his life as a district manager at RGIS, showcasing his exceptional work ethic. His career at JC Penney was marked by the same dedication, and in 2020, he further demonstrated his versatile abilities as a manager at FedEx Office. Ron had a passion for his favorite sports teams. He loved football and cheering on the TJ high school football team and the Raiders, as well as the New York Rangers hockey team. His reputation for his fast pitch was legendary. Ron radiated positivity; his friendly smile never faded, and the kindness in his eyes and his infectious laughter could light up any room. He was the kindest soul, a gentle giant, and a man who loved dogs and his family above all else. Those who met him could not help but love him in return. Ron's life was a testament to the gentle power of kindness and generosity, and his memory will be cherished and celebrated by all who knew him. Ron Colaizzi will be remembered not just for the love he shared but also for the warmth and happiness he brought into the world. Ron is survived by his loving partner, Carolyn Koessler; "stepdaughter," Samantha Koessler; brothers, Robert (Andrea) Colaizzi and Michael Colaizzi; and nieces and nephews, Andrew, Samantha, Talia, Enzo, Brett, and Cory. He was preceded in death by his parents, George and Marlene Colaizzi; and his sister, Denise (Jeff) Clemente. Friends and family will be received from 2 to 4 and 6 to 8 p.m. on Thursday, Sept. 18, 2025, at JEFFERSON MEMORIAL FUNERAL HOME INC., 301 Curry Hollow Road, Pleasant Hills, PA 15236. A funeral service will be held at 10 a.m. on Friday, Sept. 19, 2025, in the funeral home chapel. Burial will be handled by Jefferson Memorial Park. In lieu of flowers, memorial donations may be made to South Hills Pet Rescue at https://www.southhillspetrescue.org/donate, Cross Your Paws Pet Rescue at https://www.mightycause.com/story/Cyp2025, or The Children's Institute Day School at https://www.amazingkids.org/donate. online condolences can be made at jeffersonmemorial.com.