The Swiss Border Guard, known as the Swiss Border Guard Command, was a federal law enforcement agency, which acted as both the border guard and customs service for Switzerland. It was a uniformed and armed section of the Federal Customs Administration, which is attached to the Federal Department of Finance. It was the largest civilian security agency on a federal level.

The Swiss Border Guard took care of the prevention, intervention and repression concerning customs and migration related matters. It enforced border security and national compensating measures under the Schengen Agreement. The guard participated in international missions of the European Agency for the Management of Operational Cooperation at the External Borders (Frontex).

The modern iteration of the SBG first started in 1915 after federal measures for border control were introduced.

By 2021, the Swiss Border Guard was integrated into the Operations Directorate of the Federal Customs Administration.

The Swiss Border Guard controlled people and merchandise crossing the Swiss border, while combating smuggling and trans-border crime. It also participated in international missions. Furthermore, the Swiss Border Guard supplied agents (Ground and air marshals) to the Federal Office of Police, the agents being tasked with preventing incidents on board aircraft and at airports. In its entirety, the Swiss Border Guard was tasked with enforcing over 150 national laws.

The Swiss Border Guard had three strategic areas of work:

These strategic areas fell within the original legal framework of the Swiss Border Guard. Additionally, the cantons of Switzerland could delegate additional competences to the Swiss Border Guard. The Swiss Border Guard had no own aircraft, therefore the Swiss Border Guard was supported by the Swiss Air Force with Helicopters (with and without FLIR) and the RUAG Ranger.

Customs duties fulfilled by the Border Guard included: