HTML name of Single Quote(')?

HTML name of Double Quote(") is &quot.
Then, what is the HTML name of Single Quote(')?

Normally you don’t need to worry about encoding single quotes because they don’t have a special meaning in HTML, and they can be escaped in most languages. But if you do need to use an entity, your options are [noparse]' or '[/noparse].

A decent reference: http://www.asciitable.com/