A distinctive pick — fewer than 1 pets share this name.
Irish/Gaelic name meaning 'church' or 'associated with the church.'
Cillian is a strong Irish name with deep Gaelic roots, recently popularized by actor Cillian Murphy. It carries quiet intensity and old-world charm — perfect for a pet with serious presence and a thoughtful nature. Strong without being showy.
Pets named Cillian are most often described as:
Trait order based on owner reports across pet registries.
Cillian is a well-known pet name with 1 registered pets. Pets named Cillian are often described as dignified, strong, thoughtful.
Cillian is more commonly given to male pets, though it can be used for any pet.
Yes! Cillian is both a popular pet name (ranked #25500 for pets) and a baby name. It is one of 1,600+ names shared between pets and humans on NamesPop.
Last updated May 2026 · Data: NYC & Seattle pet licensing records · Methodology