Billy Boston and Gus Risman are the first two inductees in the newly formed Welsh Rugby League Hall of Fame.
Wigan legend Boston and former Great Britain captain Risman - both originally from Cardiff - also feature in the British Hall of Fame.
Both are also commemorated in a bronze statue at Wembley Stadium, the home of the game's Challenge Cup final.
The first celebration dinner will take place on Monday, 25 April in Ewloe, north Wales.
Boston, now 81, will be among Wales players past and present attending the event while Risman, who died in 1994, will be represented by his son John.