Roblox is a common geographical name used in various contexts. Roblox may refer to:
- Roblox (planet) - planet in the Blox System, the only known inhabited planet.
- Robloxian (species) - a humanoid species inhabiting the planet of Roblox with a population of approximately 8,100,000,000.
- Roblox Universe - The Roblox Universe is all of space and time and their contents.
- Roblox (TV series) - A animated television series based on the comic series with the same name created by Declan Hawkins.
- United States of Robloxia - state in North Bloxmerica with a population of 714,622,681.
- United Roblox of Indonesia - state in Southeast Baoji with a population of 242,968,342.