Celtic dominance of the Scottish Premiership over the last decade has largely been attributed to their excellent recruitment strategy - and few would disagree.
While not all signings have worked out, the champions have long found success when it comes to spotting talent at a low cost. Even more impressively, the Hoops hierarchy have found a number of successful purchases signings in the notoriously difficult January window, with many of their current starting XI arriving at Celtic Park in the new year.
But who have been Celtic’s best ever January signings since the window was introduced in the 2002-03 season.
Here, The Scotsman rank Celtic’s best ever January transfer, from 16-1.

9. Mikael Lustig - free transfer from Rosenborg
Spent seven successful years with Celtic after joining on a Bosman free, and proved to be one of the club's most shrewd January signings ever. An eight time Scottish Premiership title winner, he also lifted the Scottish Cup and Scottish League Cup four times each. Moved to Gent after 273 Celtic appearance, before retiring with AIK in 2022. | Getty Images Photo: Getty Images
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10. Tom Rogic - £480k from Melbourne Victory
The Australian was a cultured midfielder that spent 10 seasons at Celtic Park, and left after winning no less than 16 trophies with the club. While it took him a while to warm up in Glasgow, his contribution to the club for a fee of just £480k makes him one of Celtic's best value January buys. Spent one season at West Bromwich Albion, but made the surprise decide to retire in 2023, aged just 31. | SNS Group Photo: SNS Group

11. Kris Commons - £300k from Derby County
A serial trophy winner in Glasgow, the Scotland international is one of the best pound for pound January signings ever made by Celtic. Scored 91 goals during his seven seasons at the club, winning no less than eight trophies. Winner of the PFA Scotland Players' Player of the Year in 2014. | Getty Images Photo: Getty Images
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12. Nicolas Kuhn - £3million from Rapid Wien
Bought for £3million last January, and is already valued at £25million just 12 months later, such has been his incredible form at Celtic. Took a little while to get going, but has exploded into life this year after a strong pre-season, scoring 16 goals and assisting a further 11 already this year, in all competitions. | SNS Group Photo: SNS Group
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