Hall has struggled to secure first-team football at Wigan this season and he has made only two appearances for the Latics this campaign.
The centre-back becomes the latest acquisition for QPR as manager Luigi De Canio makes full use of the January transfer window.
Rangers have already clinched deals for Patrick Agyemang, Hogan Ephraim, Akos Buzsaky, Matthew Connolly, Gavin Mahon and Kieran Lee as De Canio bids to build a squad capable of moving away from the Championship relegation zone.
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