Liam began as a short form of William, but has long stood on its own. It is now the fastest-rising Irish names in the US, breaking into the Top 10 for the first time ever in 2012, and now at a remarkable Number 2.
Irish-born actor Liam Neeson was instrumental in driving Liam up the charts, as was, to a lesser degree, former Oasis member Liam (born William) Gallagher, and, more recently, One Direction member Liam Payne . Celebrities who have chosen Liam for their sons include Tori Spelling, Calista Flockhart, Rod Stewart, Kevin Costner and Craig Ferguson.
Internationally, Liam is enjoying great popularity not only in the U.S. and Ireland (where it's Number 13), but in Sweden (Number 7).
Jaunty and richly textured, Liam could conceivably go all the way to the top.