The term alias may refer to—

• an assumed name, or pseudonym.
• in computing, a Unix shell built-in command, or an alternate e-mail address.
• in computing, a link to another file in the file system, especially as it applies to Mac OS.

Also the term aliasing may refer to—

• in signal processing, the effect that causes different continuous signals to become indistinguishable (or aliases of one another) when sampled.
• in computing, the indirect (usually unexpected) effect on other data when a variable or reference is changed.

The name Alias may refer to—

• an American television series.
• an American comic book.
• Alias Systems Corporation, the software company that produces Maya.
• the pseudonym of a rap artist.