The new deal means Menadue, a Western Jets and Vic Metro product, will remain at Richmond until at least the end of 2018.
Menadue, 19, was selected by the Club with pick No.33 in the 2014 AFL National Draft.
He played five senior matches in his debut season and has cemented his spot in the senior line-up this year.
The wingman has featured in 11 games this year, kicking five goals.
Richmond has also extended the contracts of young players, defender Nick Vlastuin and midfielder pair Corey Ellis and Nathan Drummond from the strong 2014 AFL National Draft.
Richmond’s General Manager of Football, Dan Richardson, said the Club was impressed with Menadue’s progress.
“Connor has already shown exciting signs in first two seasons at the Club,” Richardson said.
“At 19 years old, he is still very young but we are confident he is firmly in our future plans.
“We are delighted to extend his contract beyond 2016 and look forward to seeing his career continue to develop.”