Samuli Paulaharju (14 April 1875 – 6 February 1944) was a Finnish teacher, ethnographer and writer.

He studied in the Jyväskylä Teacher Seminary and graduated in 1901.

[2] Paulaharju spent summers for field trips collecting folklore, in the winter he wrote his works and taught in the school.

[1] Since 1908 Paulaharju also worked as a curator for the Northern Ostrobothnia museum in Oulu.

Nowadays Paulaharju's study and library can be found in the museum.