Zimredda, also Zimr-Edda or Zimr-Eddi ( Zîmreda; Amorite: *ḏimrī hadda, "Hadad is my protection" ) was the mayor of Sidon, (i.e. the "King of Sidon") in the mid 14th century BC. He is mentioned in several of the Amarna letters, in the late Rib-Hadda series, and later. He authored letters EA 144–45 (EA for 'el Amarna'). Zimredda of Siduna-Sidon, is the only mayor of Siduna in the 1350–1335 BC Amarna letters correspondence, (15–20 year) time period. Zimredda of Sidon's name is referenced in ten Amarna letters, with three from the Rib-Hadda series-(+Rib-Hadda EA 92, entitled: "Some help from the Pharaoh"-(calling mayors to assist Rib-Hadda), as the "King of Siduna"), five from Abimilku of Tyre, also his own letters. (He is the major subject of half of Abimilku's letters to pharaoh.) The Abimilku letters reference Zimredda of Siduna as one of his major enemies in the groups against Abimilku.

Zimredda of Siduna: his two letters

EA 144: "Zimreddi of Siduna"

A letter written to the pharaoh. (See: the Prostration formula)

EA 145: "Word on Amurru"

A letter written to someone, in the pharaoh's charge.

EA 154, no. 9 of 10 of Abimilku

This damaged letter is the 5th letter of Abimilku which discusses the affairs of Zimredda: ('ruler of Siduna'). His name appears in the end-lines damaged lacuna. He is also referenced as the "ruler of Siduna", line 14.

EA 154: "Orders carried out"