Jenny

Also French: https://meilleursprenoms.com/popularite-prenom/Jenny

---

Also Norwegian: https://www.nordicnames.de/wiki/Jenny [noted -ed]

I called some guy called Jenson the name Jenny.

Jenny is also Estonian. The name day for Jenny is Estonia is August 15.

Also Estonian: https://www.stat.ee/public/apps/nimed/

This name is not Spanish, maybe it's used in some Latino American country but that does not make it Spanish.
If, let's say Amalie started to be used instead of Emily in the states or the UK, Amalie would not automatically become English.
Also, spelled like this, Jenny sounds like it should in Spanish, it would be something like Yeni, Lleni or even Hieni.

Could also be short for Imogen, rarely but logically. Or even Magenta.

To be honest... Jenny is really common in Asian countries. I actually know like 5 Vietnamese Jenny's. Furthermore, there's a Kpop idol in "Black Pink" who is named Jenny.

Jenny is also a popular name in Finland. It actually was more common than Jenni before being overtaken in the 1960s or the 1970s. Traditionally, Jenny is pronounced YEN-nuy, although sometimes it is used as an unusual spelling for Jenni (YEN-ni).

As a German name, it was originally a diminutive of Eugenie and Johanna. Only in the later decades of the 20th century it started being used as a diminutive of Jennifer.

The name is also used in Denmark, and Norway.

Also used in Norway.