TriQuarterly is the literary magazine of Northwestern University. It is operated by the Litowitz MFA+MA Graduate Creative Writing Program. Alumni of this program, the School of Professional Studies, and other readers serve as editorial staff. Available around the world, TriQuarterly has remained "an international journal of writing, art, and cultural inquiry.” TQ has created an online archive of its own history by publishing individual works from its past, sometimes with new accompanying comments by the writers. The Northwestern University Library has digitized the entire history of the journal.

As a web journal, TQ has the capacity to add audio, video, and a variety of new and frequently uploaded content to supplement its schedule of publishing issues twice a year. 

In 1958, the "Tri-quarterly" was so named because its original form as a student magazine was published in each of the three quarters of Northwestern's academic year, and not in the fourth quarter, summer. This name has been belied at times by the magazine's real publishing schedule, but now TQ has altered the tradition quite deliberately to one of semi-annual publishing of discrete issues and frequent updating with new reviews, interviews, blog posts, and excerpts from longer works.