If "Piper" is a nickname for "Philippa":
* Philippa is the German equivalent of "Philippa" and would be the most accurate translation.
If "Piper" refers to a musician who plays the pipe:
* Pfeifer is the German word for "piper" or "pipe player". This would be a more literal translation but might not be suitable as a first name.
If "Piper" is used as a surname:
* Pfeifer would also be the most common German surname for "Piper".
If you are looking for a similar-sounding name:
* Pieper is a common German surname that sounds similar to "Piper".
Ultimately, the best German name for "Piper" depends on the context and what meaning you want to convey.