Dolphin has a long tradition of supplying players to the most famous club team in the world.
One name is always synonymous with the Barbarian’s and that is Tony O’Reilly. Sir A.J.O’Reilly holds three Barbarian records, he made a total of 30 appearances and scored 38 tries, including scoring seven in one match v East Africa.
Three of the appearances were during the two seasons he spent with Dolphin.
To date ten Dolphin men have played in the famous black and white strip.
| Name | Opponent | Date | Score | Points Scored |
| Fergus Aherne | Leicester | 27/12/1989 | 16-32 | |
| C J Hanrahan | Cardiff | 19/04/1930 | 14-08 | |
| Swansea | 21/04/1930 | 12-08 | ||
| Newport | 22/04/1930 | 13-23 | 2 conversions | |
| Cardiff | 26/03/1932 | 09-11 | ||
| Swansea | 28/03/1932 | 06-05 | ||
| Michael Kiernan | Penarth | 09/04/1982 | 84-16 | 2 tries |
| Newport | 13/04/1982 | 48-20 | 2 tries | |
| Racing Club De France | 28/09/1982 | 17-22 | ||
| Newport | 16/10/1982 | 15-19 | ||
| London Welsh | 14/09/1985 | 27-24 | 1 conversion | |
| Terry Kingston | Argentina | 17/11/1990 | 34-22 | |
| New Zealand | 04/12/1993 | 12-25 | ||
| Stirling County | 26/09/1995 | 57-34 | ||
| Mick Lane | Cardiff | 16/04/1949 | 6-5 | |
| J S McCarthy | Cardiff | 16/04/1949 | 6-5 | |
| Newport | 19/04/1949 | 6-5 | ||
| Cardiff | 28/03/1948 | 3-13 | ||
| Swansea | 29/03/1948 | 12-3 | ||
| Phil O’Callaghan | Cardiff | 05/04/1969 | 16-20 | |
| Cardiff | 28/03/1970 | 30-28 | ||
| Swansea | 30/03/1970 | 24-08 | ||
| Scottish XV | 09/05/1970 | 33-17 | ||
| Wanderers | 26/09/1970 | 30-09 | ||
| Fiji | 24/10/1970 | 09-29 | ||
| Bertie O’Hanlon | Penarth | 26/03/1948 | 12-07 | |
| Swansea | 29/03/1948 | 12-03 | ||
| John O’Meara | Penarth | 03/04/1953 | 13-03 | |
| Swansea | 06/04/1953 | 18-08 | ||
| Leicester | 28/12/1953 | 18-03 | ||
| Cardiff | 31/03/1956 | 06-06 | ||
| Newport | 03/04/1956 | 03-14 | ||
| Brian Scott | Tonga | 10/11/2017 | 27-24 |
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