The capital of Switzerland is BERN, which is a 4-letter word. BERN is the de facto capital of Switzerland and is the fourth most populous city in the country. It is located in the canton of BERN in the west-central part of the country. BERN is the seat of the Swiss federal government and is home to numerous international organizations. The city is known for its medieval architecture, which includes the Zytglogge clock tower and the BERN Minster cathedral.