Orokamonogatari (愚物語) is the fourteenth part of the Monogatari series. It is the nineteenth book overall, and contains the stories Sodachi Fiasco (そだちフィアスコ), Suruga Bonehead (するがボーンヘッド), and Tsukihi Undo (つきひアンドゥ). It is the first book in the Off Season of the series.

As the first novel of Off Season, it is the first novel to feature arcs that don't occur chronologically after each other. Instead, each individual arc features a different narrator and tells its own story, not directly related to the other arcs in the novel.