Tammuz may refer to:

• Tammuz (mythology), Babylonian and Sumerian god
• Tammuz (Hebrew month), the 4th month of the Hebrew calendar
• Tammuz (Babylonian calendar), a month in the Babylonian calendar
• Tammuz 1 or Osirak, formerly a nuclear reactor in Iraq

See also

• Tamuz (disambiguation)

This disambiguation page lists articles associated with the title Tammuz.
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