| Province: | QC |
| Type: | QC |
| Route: | 191 |
| Map: | Route 191-QC.png |
| Established: | 2009 |
| Length Km: | 15.3 |
| Length Round: | 1 |
| Direction A: | South |
| Direction B: | North |
| Terminus A: | in Rivière-du-Loup |
| Junction: | near Rivière-du-Loup |
| Terminus B: | in Cacouna |
| Previous Type: | QC |
| Previous Route: | 185 |
| Next Type: | QC |
| Next Route: | 195 |
| Cities: | Cacouna, Rivière-du-Loup |
Quebec Route 191 is a provincial highway in the Canadian province of Quebec. This route provides a link connecting Quebec Autoroute 20 and Quebec Autoroute 85 from Rivière-du-Loup and Cacouna and a direct link for areas east of Rivière-du-Loup towards the southern part of the Bas-Saint-Laurent region, New Brunswick and Maine.[1]