Polish Women's Alliance of America (pol. Związek Polek w Ameryce) is a heritage and fraternal benefit society, established on May 22, 1898, in Chicago, Illinois. Its creation was spearheaded by Stefania Chmielinska, a Polish immigrant and seamstress who advocated for women's rights and self-sufficiency at a time when immigrants, particularly women, faced numerous social and economic challenges.

The organization was founded to provide financial security and support to Polish women in America, addressing issues such as access to life insurance, higher education, and professional opportunities. During its formative years, the Polish Women's Alliance swiftly grew to become a significant entity in both the Polish and Polish-American communities, championing women's rights and aiding those seeking to establish their lives in a new country.

Over the years, the Alliance has been involved in several key historical movements and causes impacting Polish-Americans. It played a pivotal role during Poland's struggles for independence from the Partitions, supported scientific endeavors like the research of Marie Curie, and contributed to various humanitarian efforts during both World Wars. The organization also helped establish the Polish American Congress in 1944 and has participated in initiatives to preserve cultural heritage, such as restoring the Statue of Liberty and supporting religious and cultural institutions.

The Polish Women's Alliance actively promotes Polish heritage through a variety of cultural programs, including language and literature lessons, folk dance, and youth conferences. Furthermore, it has sponsored various charitable initiatives in Poland, such as supporting institutions for the blind and providing aid to numerous social causes.

Local organizational units of the Alliance are referred to as "Groups," while regional divisions are known as "Councils." As of the late 20th century, the membership had peaked at around 100,000, making it one of the largest women’s organizations in the United States. As of 2017, the Polish Women's Alliance merged with the Fraternal Catholic Society of America (FCSLA), continuing its mission of providing financial products and services while also enhancing its charitable outreach and cultural initiatives.

Today, the Polish Women's Alliance of America remains committed to empowering women, fostering community, and preserving Polish culture, serving as a vital resource for Polish-Americans and celebrating the legacy of Polish women in the United States.