The Breithorn (German for literally "broad horn"; 13,661 ft. or 4,160 m) is a mountain range of the Pennine Alps with its highest peak of the same name (but also called Breithorn (Western Summit)), located on the border between Switzerland and Italy.

It lies on the main chain of the Alps, approximately halfway between the Matterhorn and Monte Rosa and east of the Theodul Pass.

This is due to the Klein Matterhorn cable car which takes climbers to over 3,820 m (12,700 ft) from Zermatt for a starting point.

However, inexperienced mountaineers may run into severe difficulty if caution is not taken near cornices or in bad weather.

For experienced climbers wanting more of a challenge, the half traverse of the Breithorn crest is another option.