Pieter Frederich Dahler (21 February 1883 in Semarang – 7 June 1948 in Jogjakarta), more commonly known as P.F.
Dahler or Frits Dahler, was one of the leading Indo (Eurasian) politicians and activists advocating integration of the native Indo-European community into the indigenous society of the Dutch East Indies (now: Indonesia).
After World War II he changed his name to Amir Dachlan.
Together with E.F.E.
Douwes Dekker, he was a strong political proponent of association between Indo-Europeans and Indonesians in the colonial Dutch East Indies and early post-colonial Indonesia.