Born in Copenhagen, Benzon's literary career spanned several genres, including lyric poetry, plays, and novels. His works frequently explored themes of love, melancholy, urban life, and the nuances of human emotion, often characterized by a refined and elegant style. He was influenced by contemporary European literary trends, including Symbolism and Decadence, which resonated in his introspective and often somber artistic perspective.
Among his significant works are collections of poetry such as Vinterrejse (Winter Journey, 1888) and Digte (Poems, 1892), which showcased his sensitive and contemplative voice. He also wrote plays, including En Skandale (A Scandal, 1895), and the novel Vor Mand (Our Man, 1902). Beyond his original creations, Benzon contributed to Danish cultural life through translations and critical essays.
Otto Benzon is remembered as an important, if sometimes understated, voice in Danish literature, whose work provided a sophisticated reflection of the era's intellectual and emotional currents.