Do guide dogs have a patron saint?

There isn't a specific patron saint for guide dogs. However, there are several saints who could be considered as patrons of service animals, depending on the aspects you focus on:

* St. Roch: Known for helping the sick and afflicted, he's often depicted with a dog at his side. While not directly related to guide dogs, he embodies the care and compassion that service animals provide.

* St. Francis of Assisi: Revered for his love of all creatures, St. Francis could be considered a patron saint for animals in general, including guide dogs.

* St. Martin of Tours: He's credited with helping the poor and those in need, which aligns with the assistance that guide dogs offer to visually impaired individuals.

Ultimately, the "patron saint" of guide dogs is a matter of personal devotion and interpretation. While there's no official designation, the work of guide dogs is so impactful and aligns with the values of these saints that they could be considered symbolic patrons.