2005–06 Celtic League

The 2005/06 season of the Celtic League, of Irish, Welsh and Scottish rugby teams together -wide championship, began on 2 September 2005. The regular season consisted of twenty game days (one forward and reverse turn) and lasted until 27 May 2006. northern Ireland's Ulster Rugby team won the championship.

Table

• Champion 2005 /06

M = Acting Master

The points are distributed as follows:

• 4 points for a win
• 2 points for a draw
• 0 points for a loss (before possible bonus points )
• 1 bonus point for four or more successful attempts, regardless of the Final
• 1 bonus point for a loss by seven points or less difference