Joe Calzaghe, Helen Weston, Phil Bennett and Arthur Gould joined the Welsh Sports Hall of Fame in Friday's annual dinner in Cardiff.
Calzaghe is the longest-reigning current world boxing champion
Calzaghe, 35, is the longest reigning current boxing champion, having held the WBO super middleweight crown for 10 years, and is undefeated in 43 fights.
Cwmbran netball star Weston, 41, is Wales' most-capped player with 112.
Wales and Lions fly-half rugby great Bennett, 59, is joined posthumously by 27-cap back 'Monkey' Gould.
The centre or full-back starred for Wales between 1885 and 1897, when he was involved in the infamous 'Gould Affair'.
In the year of his international retirement, the Welsh Rugby Union bought the Newport man, Wales' captain 1889-90, a house in Clytha Park from the proceeds of a benefit game.
This breach of the amateur ethos enraged the English, Scottish and Irish unions, who boycotted fixtures with Wales for a time.
Gould died in 1909 at the age of 54 and was celebrated with one of the biggest funerals Wales had ever seen.