You're allowed to be Hitler, but don't even try being Gay on social networking site Facebook.

It's been revealed that the popular website - which boasts it has more than 30 million members from around the world - does not allow people with the common Anglo Saxon surname Gay to join, assuming it is not a legitimate name.

After a story in New Zealand's Dominion Post about 30-year-old Rowena Gay, who was denied entry to site because of her last name, smh.com.au undertook a test and found a person with the last name Gay was indeed not allowed to join.