Pupil of the eye
In Amharic, Bilen refers to the pupil of the eye, often used metaphorically to describe someone who is precious or beloved. It is also the name of an ethnic group in Eritrea. The name carries a sense of being the center of one's vision or focus.
Fewer than 5 girls were named Bilen in 2025.
US births per 5-year period, 1990–present (SSA data).