Kabbalah
The concept of parallel worlds is also mentioned in Kabbalah:
"There are five worlds between the Creator and our world. Each of them consists of five Partzufim and each Partzuf of five Sefirot.In total there are 125 levels between us and the Creator. Malchut, moving through all these levels, reaches the last one, and in this way, Behina Dalet, the only creation, merges with the four previous phases."
Read more about this topic: Multiverse (religion)