Centre Adam Warren has signed up a two-year contract extension which will keep him Dragons until 2021.
The once-capped 28-year-old arrived at Rodney Parade from Scarlets in the summer of 2015.
He unites forward Lewis Evans and Matthew Screech, who have already signed deals to keep with Dragons.
“Adam has come to be a firm fan’s favored during his period at the Dragons, due to his consistently strong performances,” said coach Ceri Jones.
Warren said:”I am still enjoying my rugby for the Dragons and challenging myself to keep developing and improving.
“We now have a young squad with loads of vision to help the region achieve success”