Island or lake; waterfall
Ilynn is a modern American coinage, likely a creative blend of the Welsh name Lynn, meaning 'lake' or 'waterfall', and the prefix 'I-'. It may also be interpreted as a variant of Eileen or Aileen, which are Irish forms of Helen, meaning 'bright' or 'shining light'.
About 18 girls were named Ilynn in 2025.
US births per 5-year period, 1990–present (SSA data).
