The National Fallen Firefighters Memorial in Maryland now bears the name of John Whelan.
Whelan fell through a skylight while fighting a fire in June 2015 and died from his injuries several weeks later.
Sunday, his name was read along with more than 100 other fallen firefighters at a ceremony held by the National Fallen Firefighters Foundation.
Whelan served Denver Fire for 15 years.
He left behind a son and wife.