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January 2010 Transfers
The current UK transfer window concluded on Monday 1st February 2010. The Irish players detailed below were all involved in some form of transfer during the period. Top of the impact list is the loan move of Ireland captain Robbie Keane from Tottenham Hotspur to Glasgow Celtic. Current senior international squad member Leon Best is also a prominent permanent movement. Recent senior squad members Alex Bruce and Daryl Murphy were involved in loan transfers while seven members of the current Under 21 squad were involved in loan moves.
| Leon Best | Coventry City | Newcastle United | Undisclosed |
| Alex Bruce | Ipswich Town | Leicester City | Loan |
| Richie Byrne | Inverness C | Darlington | Free |
| Grahan Carey | Glasgow Celtic | St Mirren | Loan |
| Mark Connolly | Bolton Wanderers | St Johnstone | Loan |
| Darren Dennehy | Cardiff City | Gillingham | Loan |
| Willo Flood | Glasgow Celtic | Middlesbrough | Free |
| Gavin Gunning | Blackburn Rovers | Rotherham United | Loan |
| Colin Healy | Ipswich Town | Falkirk | Loan |
| Stephen Henderson | Bristol City | Aldershot | Loan |
| Robbie Keane | Tottenham Hotspur | Glasgow Celtic | Loan |
| Robert Kiernan | Watford | Kilmarnock | Loan |
| Damian McCrory | Plymouth Argyle | Dagenham & Redbridge | Undisclosed |
| Donal McDermott | Manchester City | Scunthorpe United | Loan |
| Brendan Moloney | Nottingham Forest | Scunthorpe United | Loan |
| Daryl Murphy | Sunderland | Ipswich Town | Loan |
| Kyle Naughton | Tottenham Hotspur | Middlesbrough | Loan |
| Marcos Painter | Swansea City | Brighton & Hove Albion | Loan |
| Richie Partridge | MK Dons | Stockport County | Loan |
| Shane Redmond | Nottingham Forest | Darlington | Loan |
| Cillian Sheridan | Glasgow Celtic | St Johnstone | Loan |
| Keith Treacy | Blackburn Rovers | Preston North End | Undisclosed |
| Mark Yeates | Middlesbrough | Sheffield United | £500,000 |