Tengah is a term used in both the Indonesian and Malay languages to signify "central" or "middle." Due to its linguistic meaning, the word appears frequently in geographical nomenclature across the Indonesian archipelago.
The name is commonly utilized in topography to identify various provinces and regions. Notable examples include Jawa Tengah (Central Java), Kalimantan Tengah (Central Kalimantan), Papua Tengah (Central Papua), and Sulawesi Tengah (Central Sulawesi). Additionally, it is used in maritime geography to refer to the Tengah Islands, also known as the Central Archipelago.