You can delete a Roblox account by simply emailing the company, but there are a few other ways to do it.

If you want to block the Roblox website or app, or prevent Roblox from being downloaded on your Windows 11/10 computer, see this post.

You can follow these steps to block anybody you want on the platform: Log in to your Roblox account and click on the search bar at the top of the page.