Dadan could refer to:
* Dadan, another name for the ancient kingdom of
Lihyan
Lihyan (, ''Liḥyān''; Greek: Lechienoi), also called Dadān or Dedan, was an ancient Arab kingdom that played a vital cultural and economic role in the north-western region of the Arabian Peninsula and used Dadanitic language. The kingdom fl ...
in the Arabian Peninsula
*
Dadan Island, an island in Kinmen County, Taiwan
*
Dadan Pahalwan, Indian politician
*
Dadan River, a river in Yunnan Province, China
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