Poul Knudsen (9 November 1889 – 30 April 1974) was a Danish writer.
Knudsen worked on symbolistic and exotic themes.
He collaborated with Finnish composers Jean Sibelius in 1911 on the tragic ballet-pantomime, Scaramouche, and with Leevi Madetoja in 1927 on a second ballet-pantomime, Okon Fuoko.
The premieres of each production, however, were delayed and, upon being premiered, Knudsen was faulted for weak libretti.