Look up junk mail in Wiktionary, the free dictionary.
Junk mail may refer to:
- Advertising mail, the delivery of advertising material to recipients of postal mail
- E-mail spam, the sending of unsolicited bulk messages by email
- Junk Mail (film), Norwegian, 1997
- "The Junk Mail", an episode from the TV series Seinfeld
- Junk Mail (book), 1995, by Will Self