Peter Fredrik Feilberg (7 April 1800 – 5 August 1863) was a Norwegian newspaper editor, bookseller and printer, who also served as mayor of Skien.
He was notably convicted of libel in 1837 and sentenced to pay 60 speciedaler; the complaint having been filed by County Governor Frederik Wilhelm Wedel Jarlsberg (1787-1863).
Feilberg's defender Pavels Hielm (1781-1846) was also convicted of inappropriate procedure and was sentenced to pay a fine of 10 speciedaler for having recited a poem during the final speech of the defence.
In 1843 Herman Bagger (1800-1880) was brought in as co-editor and the name of the newspaper was changed to Bratsberg Amtstidende og Correspondent.
His daughter Eleonora Amanda Feilberg (1833-1883) and her son Peter Fredrik Feilberg-Hansen (1862-1935) were also photographers.