The Col du Grand Ballon (French pronunciation: [kɔl dy ɡʁɑ̃ balɔ̃]; elevation 1,343 m (4,406 ft)) is a mountain pass situated close to the summit of the Grand Ballon (1,424 m (4,672 ft)) in the Vosges Mountains of France.

There are several different directions from which the Col du Grand Ballon can be climbed: From Cernay (south-east), the total distance is 23.3 km (14.5 mi) at an average gradient of 4.5%, gaining 1,046 m (3,432 ft) in height.

[2] From the south it is also possible to climb on minor roads from Saint-Amarin or Moosch, both on the N66; these routes join together at Geishouse.

Both routes are approximately 12.5 km (7.8 mi) long at an average of over 7%, with a kilometre section near the summit at 12%.

[6] The Tour de France first crossed over the Col du Grand Ballon in 1969, when the leader over the summit was Lucien Van Impe.