Topic can refer to:

• An area of interest, also called a subject
• What a composition is about; what is described by the main ideas and supporting details
  • The focus of an article in a publication
  • The focus of a discussion or debate; see On-topic
• Topic (or theme) in linguistics, the part of a proposition that is being talked about (predicated)
• A topic sentence, a sentence in a paragraph that indicates what the paragraph in general is about, usually the first sentence
• An XML topic (a kind of resource)
• Topicality, a stock issue in policy debate which pertains to whether or not the plan affirms the resolution as worded
• Topicals, an area of stamp collecting
• Topic Maps, an ISO standard for the representation and interchange of knowledge
• Topic as Meta-information in linguistics
• Topic, in Leonard G. Ratner's exposition, a type of music readily identified by a listener in the Classical period

Names and titles:

• Dado Topić, Croatian rocker
• Topic (Rapper)
• Topic (chocolate bar), a brand of milk chocolate confectionery bar with hazelnuts in soft nougat and smooth caramel
• Topic Records, a British record label
• Topics, a work by Aristotle

• Games (3)
• Operating Systems (1)
• Places (2)
• Programming Languages (1)

• Public Wiki Forums
  c2.com
  The possibly canonical list of public wikis, on the original wiki.

• Bookshelved Wiki
  bookshelved.org
  A wiki dedicated to books; an online discussion where the primary topic is books read by the people who contribute.
• AOLserver Wiki
  panoptic.com
  The official wiki web for AOLserver, America Online's open-source web server.