Jean-Claude Biver (French pronunciation: [dʒɑ̃ klod bivɛr]; born 20 September 1949) is a Luxembourg-born Swiss watchmaking executive. He previously served as the chief executive officer (CEO) of TAG Heuer. From 2014 until 2018, he was the president of LVMH's watchmaking division until his retirement after 43 years in the industry.

Since 2014, he served as chief executive, board member, and minority shareholder of Hublot, a Swiss luxury watchmaker. Biver has been successful at Hublot, and was previously successful in rejuvenating the Blancpain and Omega brands, both currently owned by Swatch Group. Biver's leadership in the Swiss watch industry has been credited as "single handedly [sic] ... saving [the industry] from the quartz movement." In 1980, even prestigious Swiss watch brands had "a proportion of 70% more or less quartz movements in their collection;" since then, the Swiss watch industry has staged a "remarkable recovery", with 2008 exports valued at CHF17 billion.

Since 2022, Biver is the chairman of JC Biver, his own luxury watch manufacture based in Givrins, Switzerland, which he launched together with his youngest son Pierre Biver. Therefore, Biver can now officially also be seen as watch manufacturer.

Biver is also known for his own exclusive cheese.

Biver was born on 20 September 1949 in Luxembourg City, Luxembourg to Jacques Biver (b. 1924), who was the proprietor of a shoe store, and Denise Biver (née Zeien), originally from the Burgundy region in France. He spent his initial years at 2 Rue du Capucins in the old town of Luxembourg City.

At the age of 10, he moved with his family to Switzerland, attending school in Saint Prex. He later studied at Collège des Morges, and earned a degree in business at HEC Lausanne (also known as the Faculty of Business and Economics of the University of Lausanne).

Upon graduation, he spent time in the Vallée de Joux, absorbing the culture of watchmaking, where he met Jacques Piguet, who was running the movement factory Frederic Piguet. Through Jacques' father, he met Georges Golay, chairman and CEO of Audemars Piguet, where he was offered a job as sales manager for Europe. In a year of working for AP, he was able to learn the "art of watchmaking," though he left after a year, thinking he could do better elsewhere. He left Audemars Piguet to become product manager at Omega, a major multinational brand, leaving Omega after a year to return to the manufacture d'horlogerie of the Vallée de Joux. Jean-Claude Biver was awarded a Doctor Honoris Causa from Business School Lausanne in 2012, in recognition of his contribution to the success of the Swiss watchmaking industry.

Upon return to the Valley de Joux in 1981, Biver and Jacques Piguet purchased the rights to Blancpain, a watchmaker that had gone out of business in the 1970s. Blancpain had a long history but had been rendered obsolete by the development of quartz watches. Using this as a strength, Biver and Piguet rebuilt the brand on the concept that "Since 1735 there has never been a quartz Blancpain watch. And there never will be." Blancpain quickly became one of the most respected traditional watch brands, achieving a turnover of CHF50m. In 1992, the brand was sold to SMH Group (now known as Swatch Group) for CHF60m (USD43m), having been initially purchased for CHF22,000. Biver remained CEO of Blancpain until 2003.