The term Titan could refer to:

• Titan, Saturn's largest moon
• Titan II, a type of rocket or missile used on Earth during the 20th and 21st centuries
• USS Titan, a Federation starship in the 24th century
• The unknown race that created Armus, described by it as a "race of titans"

It could also refer to:

• Star Trek: Titan, a series of novels featuring the USS Titan
• Titan Books and Titan Magazines, two publishing divisions of the Titan Publishing Group

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