Gemmi Pass is a high mountain pass across the Bernese Alps connecting Leukerbad (on the south) in the canton of Valais with Kandersteg (on the north) in the canton of Bern. The pass itself lies within the canton of Valais, at a height of 2,270 metres above sea level. The main trail reaches 2,322 metres.
The pass lies between the Daubenhorn (2942 m.) in the west and the Rinderhorn (3448 m.) in the east.
The pass is at the west end of the Aar Massif and at the east end of the Wildstrubel Massif. Near the pass is the Daubensee, which has no outlet above ground.
The pass is mentioned in the Sherlock Holmes story The Final Problem. Sherlock Holmes and Dr. Watson cross the pass on their way to Meiringen, where Sherlock Holmes has his famous meeting with Professor Moriarty at the Reichenbach Falls.