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.
Less common today
Llewyn isn't in the latest US Top 1000. It last peaked at #2,353 in 2018.
US births per 5-year period, 1990βpresent (SSA data).
The titular folk singer protagonist Β· Inside Llewyn Davis