Ben Katchor (born November 19, 1951) is an American cartoonist and illustrator best known for the comic strip Julius Knipl, Real Estate Photographer.

"[1] Katchor contributed occasional illustrations while on staff for The Kingsman, the student newspaper of Brooklyn College, and he was an early contributor to RAW.

In 1993, Katchor was the subject of a lengthy profile by Lawrence Weschler in The New Yorker[2] and an extended essay by John Crowley in The Yale Review (1998).

Katchor has written several works of musical theater, including The Rosenbach Company (a tragi-comedy about the life and times of Abe Rosenbach, the preeminent rare-book dealer of the 20th century); The Slug Bearers of Kayrol Island, or, The Friends of Dr. Rushower, an absurdist romance about the chemical emissions and addictive soft-drinks of a ruined tropical factory-island; A Checkroom Romance, about the culture and architecture of coat-checkrooms, and Up From the Stacks, about a page working the stacks of the New York Public Library c.1970.

Katchor won an Obie Award for his collaboration with Bang on a Can on The Carbon Copy Building, a "comic book opera" based on his writings and drawings that premiered in 1999.