The Canterbury Bulldogs have signed Canberra Raiders star Nick Cotric on a three-year deal beginning in 2021.

Cotric, an Australia and New South Wales representative, has scored 37 tries in 80 games for the Raiders since making his NRL debut three years ago.

The 21-year-old helped the Raiders reach the Grand Final last year before they fell to the Sydney Roosters.

He will join the struggling Bulldogs from next year after signing a three-year deal.

"Signing a player of Nick's ability and class is a massive boost for our club moving forward and another step in strengthening our squad to lead us into the future," Bulldogs chief executive Andrew Hill said.

"With Luke Thompson having joined us and Nick now bringing some great strike power to our backline I am confident that we are constructing the quality of squad that can produce the results we are looking for in the coming seasons."

While the Raiders are sixth in the NRL, the Bulldogs are bottom after losing nine of their 10 games this season.