Christian Jürgen Gross (born 14 August 1954) is a Swiss football manager and former player.

After two years at Lausanne-Sport and two seasons at Neuchâtel Xamax, he moved to Germany in 1980 to play for VfL Bochum of the Bundesliga.

Gross was capped once for Switzerland, making his debut on 8 March 1978 in a 3–1 friendly away defeat to East Germany.

Gross's success with Grasshopper meant he was a very highly rated coach in his native Switzerland, but he was still little-known outside central Europe and it was a major shock when in November 1997 he was chosen to succeed Gerry Francis as manager of Tottenham Hotspur.

[11] Swiss fitness coach Fritz Schmid, who had been an integral part of Gross' training plans at Grasshopper, was denied a work permit by the British government and so was unable to take up this role at Tottenham.

[12][13] Gross' initial fortunes were mixed; his debut was a 2–0 win over Everton at Goodison Park, followed by a heavy 6–1 home defeat at the hands of Chelsea.

[18] He worked to rebuild Basel into the premier force in Swiss football and achieved greater success than when manager of Grasshopper.

Under Gross' guidance, Basel won four Swiss championships, four Swiss Cups, and mounted a fairytale run in the UEFA Champions League in the 2002–03 season, beating eventual finalists Juventus as well as knocking out Celtic and drawing with Liverpool (twice) and Manchester United.

[7] He took Basel on another European adventure three seasons later as they reached the quarter finals of the UEFA Cup in 2005–06, before bowing out to English side Middlesbrough 4–3 on aggregate despite leading 2–0 after the first leg at St. Jakob-Park.

Gross was dismissed from his managerial job on 13 October 2010 after six defeats in seven matches, when Stuttgart found itself at the bottom of the table.