2004–05 Celtic League
Countries	Ireland  Scotland  Wales
Champions	Neath-Swansea Ospreys (1st title)
Matches played	110
Attendance	470,446 (average 4,277 per match)
Tries scored	462 (average 4.2 per match)
Top point scorer	Gavin Henson (Neath-Swansea Ospreys) (175 points)[1]
Top try scorer	Kevin Morgan (Newport Gwent Dragons) (12 tries)[2]
Official website
pro14rugby.org
← 2003–04 2005–06 →

The 2004–05 Celtic League was the fourth Celtic League season, and the second following the introduction of regional rugby in Wales. It involved Irish, Scottish and Welsh rugby union clubs. The restructured Celtic League saw the Welsh regional side the Neath-Swansea Ospreys finish top of the table to take the title.

Connacht Leinster Munster Ulster Edinburgh Gunners Glasgow Warriors The Borders Blues Dragons Ospreys Scarlets class=notpageimage| Location of 2004–05 Celtic League teams in Great Britain and Ireland.

Winners; 2nd–4th place; Other teams.

Team	Stadium	Capacity	City, Area
Borders	Netherdale[a]	6,000	Galashiels, Scotland
Cardiff Blues	Cardiff Arms Park	12,500	Cardiff, Wales
Connacht	Galway Sportsgrounds[b]	5,500	Galway, Republic of Ireland
Edinburgh	Murrayfield Stadium	67,800[c]	Edinburgh, Scotland
Glasgow Warriors	Hughenden Stadium[d]	6,000	Glasgow, Scotland
Leinster	Donnybrook Stadium[e]	6,000	Dublin, Republic of Ireland
Llanelli Scarlets	Stradey Park[f]	10,800	Llanelli, Wales
Munster	Thomond Park Musgrave Park	13,200 8,300	Limerick, Republic of Ireland Cork, Republic of Ireland
Neath-Swansea Ospreys	St Helen's The Gnoll	4,500 6,000	Swansea, Wales Neath, Wales
Newport Gwent Dragons	Rodney Parade	12,000	Newport, Wales
Ulster	Ravenhill	12,800	Belfast, Northern Ireland

Pos.	Team	Pld	W	D	L	PF	PA	PD	TF	TA	TBP	LBP	Pts
1	Neath-Swansea Ospreys	20	16	1	3	508	267	+241	53	27	7	3	76
2	Munster	20	15	1	4	470	331	+139	54	33	6	1	69
3	Leinster	20	12	1	7	455	350	+105	46	32	4	3	57
4	Newport Gwent Dragons	20	11	0	9	381	436	−55	39	43	4	2	50
5	Llanelli Scarlets	20	9	0	11	402	446	−44	48	42	7	3	46
6	Glasgow Warriors	20	8	1	11	465	466	−1	40	58	4	7	45
7	Edinburgh	20	9	0	11	409	407	+2	47	40	4	4	44
8	Ulster	20	9	0	11	363	387	−24	37	34	2	5	43
9	Cardiff Blues	20	8	1	11	350	404	−54	35	41	2	4	40
10	Connacht	20	7	1	12	317	407	−90	32	46	2	5	37
11	Borders	20	3	0	17	337	556	−219	31	66	2	4	18
Under the standard bonus point system, points are awarded as follows: 4 points for a win 2 points for a draw 1 bonus point for scoring 4 tries (or more) (Try bonus) 1 bonus point for losing by 7 points (or fewer) (Losing bonus)
Source: RaboDirect PRO12 Archived 22 November 2013 at the Wayback Machine

Note: Flags to the left of player names indicate national team as has been defined under IRB eligibility rules, or primary nationality for players who have not yet earned international senior caps. Players may hold one or more non-IRB nationalities.

• MagnersLeague.com
• 2004–05 Celtic League at BBC