Borneo: A Land Divided, Yet Unified by Nature – Navigating Its Indonesian Identity
Borneo, a name that evokes images of dense rainforests, enigmatic wildlife, and a rich tapestry of indigenous cultures. But where does this vast landmass fit within the political and geographical landscape of Southeast Asia? Is it, as many might assume, entirely Indonesian? The reality, as is often the case with islands of significant size and historical complexity, is far more nuanced. While a substantial portion of Borneo falls within Indonesian territory, it is crucial to understand the island’s intricate geopolitical division.
Borneo, the third-largest island in the world, is shared by three distinct political entities:

Indonesia: The largest portion, known as Kalimantan, encompasses the southern and central regions of the island.
This division, a legacy of colonial history, has shaped the island’s present-day identity and administration. Therefore, while a significant portion of Borneo is indeed Indonesian, it is inaccurate to claim the island is solely within Indonesia.
The Indonesian territory of Kalimantan constitutes approximately 73% of Borneo’s landmass. It is divided into five provinces:
West Kalimantan (Kalimantan Barat): Known for its diverse ethnic groups, including Dayak and Malay communities, and its proximity to the South China Sea.
These provinces, each with its unique cultural and ecological characteristics, contribute to the multifaceted identity of Indonesian Borneo.
The division of Borneo can be traced back to the colonial era, primarily the influence of the Dutch and British empires.
Dutch East Indies: The Dutch controlled the southern and central regions, which would later become Kalimantan.
This historical backdrop explains the present-day political map of Borneo, where national borders intersect with the island’s natural features and indigenous territories.
Borneo’s ecological importance cannot be overstated. The island is home to one of the oldest rainforests in the world, a biodiversity hotspot teeming with unique flora and fauna.
Biodiversity Hotspot: Borneo harbors an astonishing array of species, including orangutans, proboscis monkeys, clouded leopards, and countless species of insects and plants.
The shared ecological heritage of Borneo underscores the need for cooperation and collaboration among the three political entities to safeguard the island’s natural treasures.
Borneo is home to a rich tapestry of indigenous cultures, particularly the Dayak people, who have inhabited the island for millennia.
Dayak Cultures: The Dayak encompass numerous distinct ethnic groups, each with its own language, traditions, and customs.
The cultural diversity of Borneo, particularly within the Indonesian territory of Kalimantan, is a testament to the island’s long and complex history.
Kalimantan, as part of Indonesia, has experienced significant economic development, driven by the extraction of natural resources.
Resource-Based Economy: Coal mining, timber extraction, and palm oil production have been major contributors to Kalimantan’s economy.
Balancing economic development with environmental sustainability and social equity remains a key challenge for Kalimantan.
The future of Borneo hinges on the ability of the three political entities to cooperate and collaborate on issues of common concern, particularly environmental conservation and sustainable development.
Transboundary Cooperation: Joint efforts are needed to address transboundary issues, such as deforestation, wildlife trafficking, and haze pollution.
While Borneo is divided by political borders, it remains a single ecological and cultural entity. The shared responsibility for its future lies with all who call it home.
Borneo is not solely an island in Indonesia. It is a land shared by Indonesia, Malaysia, and Brunei, each contributing to its rich tapestry of cultures and ecosystems. While Kalimantan represents the largest Indonesian portion, understanding the island’s complex history and present-day political divisions is essential. The future of Borneo depends on the ability of these three nations to collaborate on conservation and development, ensuring that this extraordinary island thrives for generations to come.