Once Upon a Time... The Explorers (French: Il était une fois... les Explorateurs) is an educational animated television series created and directed by Albert Barillé. It is the sixth series in the Once Upon a Time... franchise.

The series was produced by French studio Procidis in co-production with FR3 and Canal+ (France), Televisión Española (TVE, Spain), Westdeutscher Rundfunk, Südwestrundfunk, and Sender Freies Berlin (WDR, SWR, and SFB, Germany), Mediaset (Italy), Radio Télévision Suisse Romande and Radiotelevisione della Svizzera Italiana (RTSR and RTSI, Switzerland), Radio-télévision belge de la Communauté française (RTBF, Belgium), and the French Centre national de la cinématographie. The series premiered in France on Canal+, beginning on 10 December 1996, and it was subsequently broadcast on the channels of the rest of the broadcasters that participated in the production dubbed into their own language.