Scheisskopf (in English, "shithead") is a minor fictional character in the 1961 novel Catch-22 by Joseph Heller, who is promoted through the ranks from Lieutenant to First Lieutenant, Colonel and finally to Lieutenant General. Lieutenant Scheisskopf is the title of Chapter Eight and General Scheisskopf is the title of Chapter Thirty-seven. Scheisskopf is a parade-obsessed ROTC graduate and training officer at the Air cadet base where Yossarian and Clevinger are trained before being sent overseas. Later Scheisskopf is himself transferred overseas to General Peckem’s command.

Scheisskopf is the training commander for Yossarian and Clevinger, and he takes a particular dislike to Clevinger. Even though Clevinger is just as serious for parades as Scheisskopf, and his ideas help the squadron win multiple parades, Scheisskopf still considers him a wise guy, and someone that needs to be brought down a peg or two. Eventually Clevinger is tried for stumbling while marching at an Action Board, and he has the "book thrown at him." The bloated Colonel chairs the Board where also present are Major Metcalf, Scheisskopf (as a judge, prosecutor, and as the officer defending Clevinger) and note taker, Popinjay.

Scheisskopf is constantly thinking up new schemes to help try to win the parade, held each Sunday afternoon. He reads books on marching and uses chocolate soldiers or plastic cowboys to act out his manoeuvres. His success and innovation in organizing parades leads to his later promotions.

Scheisskopf is always too busy planning parades to fulfill his wife's masochistic sexual fantasies and replies to her requests, “Don’t you know there’s a parade going on?” Instead, she sleeps with Scheisskopf's cadets, so they can all get revenge on her husband, and so can she for some “unforgettable crime she couldn’t recall.” Mrs. Scheisskopf is well read and has a Maths major, but can not count to twenty eight without getting into trouble every month; that is, she frequently has (or at least feigns) pregnancy scares due to her affairs with other men at the base.

Mrs. Scheisskopf's girl friend Dori Duz was a “lively tart” who used men and then tossed them aside, humiliating them in bed with her superior sexual ability. Yossarian only sleeps with her once, but wishes he could do so again. Yossarian loves her, but as he never gets another opportunity to sleep with her, as she found him only "fair", he instead sleeps with Mrs. Scheisskopf to revenge himself on her husband for the way he treated Clevinger. In one notable exchange, Mrs. Scheisskopf and Yossarian lie in bed on Thanksgiving debating the existence of God. While both claim to be atheists, Mrs. Scheisskopf insists that the God she does not believe in is benevolent, and she is distressed at Yossarian's characterizing the God he does not believe in as sadistic or stupid.

Nearing the climax of the novel, Scheisskopf is shipped out to General Peckem’s command in Rome, and promoted to Colonel. On arriving he is welcomed by Peckem, who finds Scheisskopf unreceptive to his wit and charm, and is glad that he has been blessed with such a weakling as a subordinate.

The only things Scheisskopf is concerned about are running parades and sending for his wife, both of which had been promised by the officers that sent him overseas. Peckem refuses both requests, and instead allows Scheisskopf to send out announcements stating that there will be no parade each week:

Due to circumstances beyond my control, there will be no big parade this Sunday afternoon. Colonel Scheisskopf