Tanzania is a multilingual country with Swahili and English being the official languages. Swahili, also known as Kiswahili, is widely spoken across the country and is the primary language of communication for many Tanzanians. English is also widely spoken, particularly in tourist areas, hotels, and by professionals in the tourism industry. It's helpful to learn a few basic Swahili phrases as a gesture of respect and to enhance your interactions with locals.