A strong, straightforward Irish unisex surname, with a merry glint in its eye, Reagan has been leaping up the popularity lists, to become one of the top girl names starting with R. Some will inevitably link it to President Ronald, but spell it Regan and it's a Shakespearean name: a daughter of King Lear.

Malia rose up the charts back in 2009 when it was brought into the spotlight as the name of the Obama's eldest daughter. It leapt into the US Top 200, and while it hasn't reached that level of popularity again, it now sees steady usage, and is given to around 1100 girls every year.

Though Shelby was trendier ten years ago, it's still a widely used choice.

An old-fashioned nickname in the Bud/Buzz/Biff mold; this one's kind of belligerent. Michelle Hicks and Jonny Lee Miller moved outside the box when they used it for their son--given the safer middle name of Timothy.

A straightforward, down-to-earth nickname many Walters, from Whitman to Disney, have chosen to go by.

So uncool it's cool! Bertie makes for a boyish nickname for Alberta, Roberta, Bertille, Albertine... or just use it on its own, à la Billie or Frankie. Old school unisex nickname names are back in and Bertie has an undeniable vintage charm; particularly given soundalike Birdie rising in the ranks.