Why is luna park called park?

The word "Luna" in Luna Park likely refers to the Latin word for moon, as many amusement parks in the early 20th century were named after celestial themes, such as stars and planets. The name "park" is simply a common designation for an area dedicated to recreation and entertainment, and most amusement parks share this suffix. Luna Park is a registered trademark of the Luna Park Group of Companies, formerly the Ted Gardiner Family of Companies.