Frida Alexandr (December 29, 1906 – June 1972) was a Brazilian Jewish homemaker, volunteer, and author. Her only published work, Filipson, Memórias da primeira colônia judaica no Rio Grande do Sul (Filipson: Memories of the First Jewish Colony in Rio Grande do Sul) (1967) describes the Jewish immigrant farming colony established in the Brazilian countryside of Rio Grande do Sul in the early 20th century. She was the first woman to publish stories about Jewish immigrants living in Brazil's farmlands, and the only woman from Filipson to write about the colony from a first-hand perspective.