The Republic of Mauritius is an archipelagic nation located in the Indian Ocean, approximately 2,000 kilometers off the southeast coast of the African continent. The country consists of the main island of Mauritius, the autonomous island of Rodrigues to the east, and several smaller outlying territories including the Agaléga Islands and the St. Brandon archipelago (Cargados Carajos Shoals). Geologically, the islands are part of the Mascarene Plateau and were formed by a series of massive underwater volcanic eruptions. The main island is relatively young, with its oldest basalt rocks dating back approximately 10 million years. While the volcanoes are now extinct, the island's landscape is defined by a broken ring of mountain ranges surrounding a central plateau.

The territorial waters of Mauritius cover an expansive Exclusive Economic Zone (EEZ) of approximately 2.3 million square kilometers. This vast maritime domain is a critical component of the national economy, supporting a significant fishing industry and emerging sectors like seabed mineral exploration. Mauritius jointly manages about 400,000 square kilometers of this zone with the Seychelles, representing a unique model of international maritime cooperation. The nation's strategic position in the Indian Ocean has historically made it a vital node for trade routes connecting Europe, Africa, and Asia, a role that began with early visits by Arab and Malay sailors as far back as the 10th century.

Port Louis, the capital and largest city, serves as the primary gateway for the country's international trade. Established by the French in 1735 as a naval base and shipbuilding center, the city is situated on the northwest coast, protected by a semi-circle of mountains. Today, it is a major financial hub and one of the busiest container ports in the African region. The city's architecture and layout reflect its diverse colonial history, featuring a blend of French colonial buildings, British administrative structures, and a vibrant central market. Port Louis is also the site of Aapravasi Ghat, a UNESCO World Heritage site that stands as a testament to the history of indentured labor.