"Blend of Anna and Lena"
The name Annalena is commonly a female name from the "German" origin.
Annalena is a compound given name built from Anna and Lena and written as a single word rather than with a hyphen. Anna is a long established European name that comes from the Hebrew Hannah by way of Greek, and Lena is a short form of Helena or Magdalena. Joined double given names of this type are a traditional pattern in German-speaking countries, and Annalena is used there as one written name.
The pronunciation of Annalena is an-uh-LEE-nuh.