Ploughshares is an American literary journal established in 1971 by DeWitt Henry and Peter O'Malley in The Plough and Stars, an Irish pub in Cambridge, Massachusetts. Since 1989, Ploughshares has been based at Emerson College in Boston. Ploughshares publishes issues four times a year, two of which are guest-edited by a prominent writer who explores personal visions, aesthetics, and literary circles. Guest editors have been the recipients of Nobel and Pulitzer prizes, National Book Awards, MacArthur and Guggenheim fellowships, and numerous other honors. Ploughshares also publishes longform stories and essays, known as Ploughshares Solos, all of which are edited by the editor-in-chief, Ladette Randolph, and a literary blog, launched in 2009, which publishes critical and personal essays, interviews, and book reviews.

A literary magazine is a periodical devoted to literature in a broad sense. Literary magazines usually publish short stories, poetry, and essays, along with literary criticism, book reviews, biographical profiles of authors, interviews and letters. Literary magazines are often called literary journals, or little magazines, terms intended to contrast them with larger, commercial magazines.