Frédéric Weisgerber (30 March 1868, - 26 December 1946, Rabat) was a French colonial doctor and cartographer active in Morocco before and during the French Protectorate.

[1][2][3][4][5] In 1904, he wrote a book entitled Trois mois de campagne au Maroc: étude géographique de la région parcourue about his three-month participation in a campaign in Morocco in the winter of 1898.

[5] His 1904 book Trois Mois de Campagne au Maroc recounts his 3-month journey through Morocco occasioned by the illness of Sultan Abdelaziz's grand vizier, Ahmed bin Mūsa ash-Sharqī, commonly known as Ba Ahmed, early 1898.

[6][7] In this book, Weisgerber describes the geography of what had been a "terra incognita" to Europeans: its "orography, hydrography, geology, climate, flora, fauna, and population.

[7] The book also discusses the ongoing insurrection of Jilali ben Driss al-Youssefi al-Zerhouni, commonly known as El Rogui or Bou Hmara, in the north, as well as the Makhzen's treatment of prisoners at the time.