Leader or lion-like
Llewyn is a Welsh name likely derived from Llywelyn, combining the elements 'llyw' meaning leader and 'eilun' meaning likeness. It is also frequently associated with the Welsh word for lion, 'llew'. The name gained modern recognition through its use in independent cinema.
About 25 boys were named Llewyn in 2025.
The titular folk singer protagonist · Inside Llewyn Davis
US births per 5-year period, 1990–present (SSA data).