Yes, some people say it's a "pound sign" which it can be.
It's also a "number sign".
But the technical term is “octothorp,” Read about it here -- http://time.com/2870942/hashtag-oed-oxfo...
Number sign is a name for the symbol #, which is used for a variety of purposes, including (mainly in Canada and the United States) the designation of a number (for example, "#1" stands for "number one")
Number sign is most commonly used when the symbol is used before a number. In the United States, it is sometimes known as the pound sign (particularly in the context of its use on telephone keypads),
It's real name is whatever we call it.
In the past it has been a tic-tac-toe board.
It has also been used to split up farm land and was known as an octothorpe.
It has been used to represent a number is coming
It has been used to represent pounds as in the weight. It was known as the pound sign on the old touch tone landline telephones.
Now it is a hashtag and now that is its real name.
* this is an astetix because we call it that it could just as well be a frindle as it's "real" name if we called it.
The correct name is "Octothorpe"
the number sign
It was referred to as hash, and also means 'number' ie. #1 is number 1
The real name for it is number.
number sign
Number sign , read about it on the link
http://en.wikipedia.org/wiki/Number_sign
