Louis Edgard de Trentinian (25 August 1851 – 24 May 1942) was a French soldier during the colonial era before World War I.

He commanded troops in the early part of World War I. Louis Edgard de Trentinian was born in Brest, France on 25 August 1851,[1] His family was hereditary nobility of Breton origin, with a military tradition.

[3] He fought in the Franco-Prussian War (1870-1871), and was made chevalier de la Légion d’Honneur at the age of nineteen for his valor in the field.

[3] On 9 October 1873, second lieutenant Trentinian was in charge of a detachment of marine infantry with two sergeants and twenty eight corporals and soldiers that was dispatched to Tonkin.

[10] Trentinian also oversaw establishment of regional structures, construction of a railway linking Sudan to Senegal, and development of agriculture and rural crafts.

[3] The Place des Généraux-de-Trentinian in Paris' quartier de la Porte-Dauphine, was renamed 1994 in honor of father and son.