Ysidra is an intriguing and unique feminine given name, derived from the Basque language. It is a variant spelling of the name Isidor(a), which means "gift of Isis." In some cases, Ysidra may also be associated with the name Isidore, which means "given by Isis" in Greek. The name has been predominantly used within Basque-speaking regions and families, contributing to its distinctive and uncommon character in many parts of the world.
The name Ysidra appears to have been moderately popular during the early to mid-twentieth century with several peaks in its usage, particularly between 1917 and 1936. However, it became less common after the 1940s, with only a handful of births recorded since then. Overall, there were a total of 97 babies named Ysidra from 1917 to 2004.