Popularity: 3185
Origin: Irish
Meaning: courageous, valiant
Reilly is a gender-neutral name of Irish origin. A traditional Irish surname derived from O' Raghallaigh, it means "courageous" or "valiant." If you love animated movies, you may recognize this name from Disney Pixar's Inside Out, where protagonist Riley Andersen learns to adjust to complex life changes. With this in mind, baby Reilly may be inspired to take on the world with a brave and adventurous spirit wherever life takes them.