Isla is a hit name throughout the English-speaking world but hasn't found the same popularity in other western countries, perhaps because its spelling and pronunciation don't make sense for those whose native language is not English. Think island without the final two letters.

In the USA, Blair is gaining momentum, rising quickly for the last 10 years and likely to continue to climb. In England and Wales, where Blair has political connotations – calling to mind former prime minister Tony Blair – it is much less common, although it is in use for boys in its native Scotland.

The e-addition takes the name from slightly hippie-ish nature name to the place name of a picturesque island off the coast of Scotland, and for baby namers it's by far the more popular spelling.

Kenna is the Scottish version of Kendra, both of which are feminine versions of Kenneth. Used in the TV show Reign for one of the supporting characters.

Long popular in Scotland, this attractive name is strictly-speaking the Gaelic version of Eleanor, but is also often considered part of the Helen family of names. After the Normans introduced it into the British Isles, it was transformed into Aileen or Evelyn. It has rarely been heard in the US, but it is slowly starting to be used here too.