Stronnictwo Narodowe (SN, National Party) was a Polish political party formed in October 1928 after the transformation of Związek Ludowo-Narodowy (National People's Association). It gathered together most of the political forces of Poland's NDs (Narodowa Demokracja).

SN was one of the main opponents of the Sanacja regime. In 1934 a major faction of NDs split off from SN, forming Obóz Narodowo-Radykalny.

During World War II, many SN activists joined the Narodowe Siły Zbrojne and Narodowa Organizacja Wojskowa resistance organizations.

Persecuted in the People's Republic of Poland, the SN legacy was taken over by some émigré organizations.

The SN was recreated in Poland after the fall of communism in 1989. In 2001 it joined the League of Polish Families.