Joanna Russ (February 22, 1937 – April 29, 2011) was an American writer, academic and feminist. She is the author of a number of works of science fiction, fantasy and feminist literary criticism such as How to Suppress Women's Writing, as well as a contemporary novel, On Strike Against God, and one children's book, Kittatinny. She is best known for The Female Man, a novel combining utopian fiction and satire, and the story "When It Changed".

Joanna Russ was born in The Bronx, New York City, to Evarett I. and Bertha (née Zinner) Russ, both teachers. Her family was Jewish. She began creating works of fiction at a very early age. Over the following years she filled countless notebooks with stories, poems, comics and illustrations, often hand-binding the material with thread.

As a senior at William Howard Taft High School, Russ was selected as one of the top ten Westinghouse Science Talent Search winners. She graduated from Cornell University, where she studied with Vladimir Nabokov, in 1957, and received her MFA from the Yale Drama School in 1960. She was briefly married to Albert Amateau.

Russ taught at Queensborough Community College from 1966 to 1967, at Cornell from 1967 to 1972, SUNY Binghamton, from 1972 to 1975, and at the University of Colorado, Boulder, from 1975 to 1977. In 1977 she started teaching at the University of Washington. She became a full professor in 1984 and retired in 1991. Russ was awarded a National Endowment for the Humanities fellowship in 1974-1975.

Russ came to be noticed in the science fiction world in the late 1960s, in particular for her award-nominated novel Picnic on Paradise. At the time, SF was a field dominated by male authors, writing for a predominantly male audience, but women were starting to enter the field in larger numbers. Russ was one of the most outspoken female authors to challenge male dominance of the field, and is generally regarded as one of the leading feminist science fiction scholars and writers. She was also one of the first major science fiction writers to take slash fiction and its cultural and literary implications seriously. She published over fifty short stories. Russ was associated with the American New Wave of science fiction.

Along with her work as a writer of prose fiction, Russ was also a playwright, essayist, and author of nonfiction works, generally literary criticism and feminist theory, including the essay collection Magic Mommas, Trembling Sisters, Puritans & Perverts; How to Suppress Women's Writing; and the book-length study of modern feminism, What Are We Fighting For?. Her essays and articles have been published in Women's Studies Quarterly, Signs, Frontiers: A Journal of Women Studies, Science Fiction Studies, and College English. Russ was a self-described socialist feminist, expressing particular admiration for the work and theories of Clara Fraser and her Freedom Socialist Party. Both fiction and nonfiction, for Russ, were modes of engaging theory with the real world; in particular, The Female Man can be read as a theoretical or narrative text. The short story "When It Changed", which became a part of the novel, explores the constraints of gender and asks if gender is necessary in a society.

Russ's writing is characterized by anger interspersed with humor and irony. James Tiptree Jr, in a letter to her, wrote, "Do you imagine that anyone with half a functional neuron can read your work and not have his fingers smoked by the bitter, multi-layered anger in it? It smells and smoulders like a volcano buried so long and deadly it is just beginning to wonder if it can explode." In a letter to Susan Koppelman, Russ asks of a young feminist critic "where is her anger?" and adds "I think from now on, I will not trust anyone who isn't angry."

For nearly 15 years she was an influential (if intermittent) review columnist for The Magazine of Fantasy & Science Fiction. Though by then she was no longer an active member of science fiction fandom, she was interviewed by phone during Wiscon (the feminist science fiction convention in Madison, Wisconsin) in 2006 by her friend and member of the same cohort, Samuel R. Delany.