Mork may refer to:

• Character on the American sitcoms Happy Days and Mork & Mindy (1978–82)
• Mork (file format), a computer file format previously used by Mozilla-based web browsers
• A village near St Briavels in Gloucestershire, England
• Mork, Hama, a village in Syria
• Slang term for aliens in the British science fiction television series The Aliens (TV series) (2016)
• Affectionate nickname for K-pop singer Mark Lee
• Affectionate nickname for K-pop singer Mark Tuan