Clint Catalyst (born April 8, 1971) is the nom de plume of Clinton Green, an American author, actor, spoken word performer, and stylist. He has covered music, fashion, LGBT issues, and popular culture for magazines including LA Weekly, Frontiers, Out, Surface and Swindle.

Born in Jonesboro, Arkansas, Catalyst was raised an only child to Southern Baptist parents. Other than a year in Germany on scholarship, he remained there until he attended Hendrix College, where he started As If magazine and received a Bachelors in English with honors distinction. British journalist Mick Mercer describes As If as an "excellent magazine in terms of its international content, the artwork and contributions. Normally poetry-based things can cause your spleen to explode with fury at wasted space but Clint knows who means what." Upon graduation, Catalyst went to San Francisco, where he earned a Master of Arts in writing from the University of San Francisco. He said he knew he was gay from a young age, but identifies with the term "queer" in regards to his orientation.

Writing in the LA Weekly, Linda Immediato called Catalyst a "Midwestern ex–meth head who came to L.A. by way of San Francisco, where he was a goth art-club darling — the most photographed model of the underground." In Los Angeles in the 1990s "he became the most sought-after nightclub... guest-list gatekeeper, wooed by seemingly every hip promoter in the city."

In 1989, Catalyst was one of 25 graduating high school seniors in the U.S. to be awarded the Congress-Bundestag Youth Exchange scholarship through Nacel Open Door, which enabled him to live and study a year in Germany. Other awards include the Isaac Andrew Campbell Memorial Prize for Poetry, The Congress/Bundestag Scholarship, First Place in the San Francisco Levi-Strauss "Poetry Slam", First Place in the Mixed Media category, Second Place in the Short Story category, and Second Place in Poetry for the annual Murphy Foundation Programs in Literature and Language competitions.

In 2000, Manic D Press published Catalyst's book Cottonmouth Kisses, which developed a cult following and topped Amazon's list of bestselling Gay & Lesbian books. The first section of the book, Caresses Soft as Sandpaper, was originally a chapbook published by November–March. Cottonmouth Kisses went into its second printing in 2007, when it was described as a "cult hit".

While touring together in the year 2000, Catalyst and artist Michelle Tea came up with the idea to solicit first-person narratives for their 2004 anthology Pills, Thrills, Chills and Heartache, which was published by Alyson Books. Described by Publishers Weekly as a "celebrat[ion of] the avant-garde", the book reached No. 10 on the Los Angeles Times non-fiction paperback bestseller list in its first week of release. Moreover, the book was a 2004 Lambda Literary Awards finalist in the Anthologies/Fiction category.

In 2004, Catalyst and writing partner Darren Stein co-created a proposed drama The Flyover States in a development deal with Touchstone/ABC. As an associate show producer, he worked for three cycles (2005–2006) on the reality series America's Next Top Model.

In the 2007 short film In the Spotlight, Catalyst was cast opposite Guinevere Turner as a charlatan named Bell Wartock. Catalyst also appeared in Darren Stein's 2007 short Color Me Olsen in a small role as an Oompa-Loompa impersonator. He also plays the role of Járéd Silver—a parody of Catalyst's close friend, the designer Jared Gold—in Lisa Hammer's feature film, POX.