Peter Lykke-Seest (26 September 1868 – 4 February 1948) was a Norwegian poet, novelist, playwright, non-fiction writer, script writer and film director. He was born in Christiania as a son of wholesaler Jens Peter Seest and Caroline Christiane Frederikke Thy. He made his literary debut in 1896 with the poetry collection Hvide nætter, and published the novel Under Paddehatten in 1898. His most popular film was Historien om en gut from 1919. He published a book on the trial against Vidkun Quisling in 1945.