Tattler may refer to:

• A person who likes to tattle, gossip or "telltale"
• Tattler (语丝) important Chinese weekly journal founded in 1924
• The Tattler, the student newspaper of Ithaca High School in Ithaca, New York
• Tattler (bird), a shorebird
• Tattler (newsletter), the "Newsletter for the East Asian-Australasian Flyway"
• Tattler, an open-source software distribution of Drupal for mining the Web for specific information[1]
• "Tattler", a song by Ry Cooder on his 1974 album Paradise and Lunch
• "The Tattler", a song by Linda Ronstadt on her 1976 album Hasten Down the Wind, a cover of the Ry Cooder song
• "The Tattler" (Brooklyn Nine-Nine), an episode of the sixth season of Brooklyn Nine-Nine