I came to know about Linux first and than Linus and always wondered why Linux was not called Linus.
Of course not all do, e.g. Free/Open/NetBSD (though they were originally based on "BSD UNIX"), Solaris/SunOS, etc.
When he uploaded a very early version to an FTP server at Helsinki, his friend, who administered the server, changed the directory name from "freax" to "linux", thinking the latter was a much better name. Linus at first thought it would be too egotistical to name it that, but he let the name stick. I'm glad he did.