The name of our universe is often referred to as the Universe itself. In scientific terms, it is simply called the Universe, which encompasses all of space, time, matter, and energy. This includes everything from the smallest particles to the largest galaxies.
While the term Universe is the most commonly used, some people also refer to it as the Cosmos. The word Cosmos comes from the Greek word kosmos, which means order or harmony, and it is often used to describe the universe as a complex and orderly system.
In summary, the name of our universe is generally known as the Universe or the Cosmos, depending on the context in which it is being discussed.