| 2008 Six Nations Under 20s Championship | |
| Date: | 1 February 2008 – 14 March 2008 |
| Countries: | |
| Count: | 1 |
| Grand Slam: | (1st title) |
| Matches: | 15 |
| Top Try Scorer: | Noah Cato (6) |
| Next Year: | 2009 |
| Next Tournament: | 2009 Six Nations Under 20s Championship |
The 2008 Six Nations Under 20s Championship was the first Six Nations Under 20s Championship, a rugby union competition for under-20 national teams, played between February and March 2008. This was the first competition of the new under-20s tournament, following the merger of the under-19 and under-21 tournaments. England won the tournament along with the Grand Slam and Triple Crown.
| Position | Nation | Games | Points | Table points | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Played | Won | Drawn | Lost | For | Against | Difference | Tries | ||||
| 1 | 5 | 5 | 0 | 0 | 158 | 63 | +95 | 21 | 10 | ||
| 2 | 5 | 4 | 0 | 1 | 106 | 73 | +33 | 12 | 8 | ||
| 3 | 5 | 3 | 0 | 2 | 84 | 77 | +7 | 10 | 6 | ||
| 4 | 5 | 2 | 0 | 3 | 56 | 90 | −24 | 3 | 4 | ||
| 5 | 5 | 1 | 0 | 4 | 54 | 99 | −45 | 5 | 2 | ||
| 6 | 5 | 0 | 0 | 5 | 56 | 111 | −55 | 3 | 0 | ||
Noah Cato (ENG) – 6
Leigh Halfpenny (WAL) – 3
Zagar, Bastareaud (both FRA), Strain (SCO), Stegmann, Ellis, Cox, Eves (all ENG) – 2