--
--, a string of two hyphen-minus characters or - -, may approximate or refer to:
- En dash (–)
- Em dash (—), as a typewriter approximation
- Sig dashes (--), the email and Usenet signature delimiter
- For Unix commands, used as a prefix for command options. By itself, it typically means the end of command options.
- Decrement operator in some programming languages
- Inline comments, commonly used in programming languages
- Emoticon, a pictorial representation of a facial expression in characters