The name of the largest island in the Caribbean Sea is Cuba. Covering an area of about 109,884 square kilometers, Cuba is known for its rich history, diverse culture, and picturesque landscapes. It has beautiful beaches, lush valleys, and a significant colonial heritage reflected in its architecture and cities like Havana. As the largest island in the Caribbean, Cuba plays a pivotal role in regional tourism and holds political and historical significance in both the Caribbean and the wider world.