Brad Pitt appears to have some German ancestry, but not a majority share. Publicly available genealogy summaries describe his background as mostly English, with smaller amounts of German among several other Northwestern European lines.

What’s known

  • One source says he has documented German ancestry and notes an ancestor from Rhineland-Palatinate, Germany.
  • Another report says he has German ancestry and has even spoken German in real life, though that doesn’t measure ancestry by itself.
  • A detailed ethnicity summary describes his family background as mainly English, with small amounts of German plus Irish, Scottish, Welsh, and other European roots.

Best estimate

There isn’t a reliable public percentage that can be verified from the sources available here, so the safest answer is: he has some German ancestry, but it seems to be a minor part of his overall heritage.

Quick take

The most accurate public-facing answer is “partly German,” not “mostly German”.

If you want, I can also give you a short family-tree style breakdown of his reported ancestry.