The 178th (Canadien-Français) Battalion, CEF was a unit in the Canadian Expeditionary Force during the First World War.

Based in Victoriaville, Quebec, the unit began recruiting during the winter of 1915/16 in Military Districts 4 and 5, and in eastern Ontario.

The 178th (Canadien-Français) Battalion had one officer commanding: Lieutenant-Colonel René-Arthur de la Bruère Girouard.

[1] The battalion badge is a beaver couchant on plinth inscribed d'outre-mer above the numeral 178, below an arch inscribed canadien-français supporting the Tudor crown, and surrounded by scrolls inscribed "Arthabaska", "Drummond", "Nicolet", and vouloir c'est pouvoir.

This regiment is now named 12e Régiment blindé du Canada.