He has decided to take up the post of permanent manager at Birmingham City.
The League One club approached Spurs and were able to get a deal done to bring in Davies.
A statement from Tottenham read: “We can announce that Chris Davies, our Senior Assistant Coach, has left the Club to take up the role of Manager at Birmingham City.
“Formerly with Swansea City, Liverpool, Celtic and Leicester City, Chris joined us last summer as part of Ange Postecoglou's coaching staff.”
Spurs head coach Ange Postecoglou himself said: “Chris is an outstanding individual, he's done some fantastic work with us in the last season and, as I've said before, that will attract attention, so it's no surprise to me that a club of Birmingham City's stature have shown an interest in him.
“I'd like to thank Chris for all his hard work, and we wish him all the best.”