What is the full name of original writer Ibong Adarna?

There is no original writer named "Ibong Adarna." Ibong Adarna is the title of a classic Filipino epic poem, and there is no single author attributed to it.

The poem was passed down orally through generations, with different versions emerging over time. It was eventually written down in the 16th or 17th century.

While no single writer is known, some scholars believe that the poem reflects the work of many anonymous Filipino poets and storytellers who contributed to its creation.