
Yannis Tseklenis (Greek; Γιάννης Τσεκλένης; November 6, 1937 – January 29, 2020) was a Greek fashion designer. He was born in Athens.
In 1962 and 1964, Tseklenis was directly involved in the interior decoration and design relating to the official celebrations of the weddings of princess Sofia of Greece to Juan Carlos of Spain, and of Anne-Marie of Denmark to the then King Constantine II of Greece.
In 1997 he donated almost all his prototype garments from his 1970s and 1980s fashion collections to the Peloponnesian Folklore Foundation.