The 2009-10 British and Irish Cup pool stage is a rugby union tournament to be played during November 2009, February and March 2010.
The twenty four teams were arranged into four pools of six, with each team playing the other team in their pool once and the four pool winners qualifying for the knockout stage.
The following point scoring system was used: Four points for a win Two points for a draw One point for scoring four tries or more in a match One point for losing a match by seven or less points
{| class="wikitable" |+ Key to colours |- | style="background: #ccffcc;" | |Top team in each group advance to semi-finals
Pool A TeamPWDLTFPFPABPLB+/-Pts Cornish Pirates5401131156321+5219 Leinster A54019896511+2418 Newport531110815411+2716 Exeter Chiefs520311798511-610 Plymouth Albion51135555802-38 Gael Force500563512911-942
Pool B TeamPWDLTFPFPA+/-Pts Munster A55001411141+7022 Bristol54011611977+4218 Nottingham5302118159+2214 Neath5203129398-511 Coventry510420126144-188 Heriot's5005857168-1111
Pool C TeamPWDLTFPFPA+/-Pts Ulster Ravens54102216562+10321 London Welsh54011813778+5920 Bedford Blues5302119294-213 Aberavon5203451131-809 Llanelli511311106117-118 Moseley50051069138-691
Pool D TeamPWDLTFPFPA+/-Pts Doncaster Knights5500716358+10525 Cardiff54014147124+2319 Rotherham Titans52033147127+2012 Ayr52031132111+2111 Pontypridd5203199124-2510 Birmingham & Solihull5005176220-1441
The round one game between Pontypridd RFC and Cardiff RFC, was played at Cardiff's home ground, due to Pontypridd's pitch being unplayable.*
See also 2009-10 British and Irish Cup