The names Jack, Harry and Emily are dying out, according to data that shows how monikers common in the 90s are going out of fashion.

Jack, which sat atop the boys' names popularity list every year between 1996 and 2008, last year ranked 22nd, with just 1,711 babies being given the name.

This is a fall of more than 4,000 (70 per cent) compared with 10 years ago, marking the biggest decrease of all 6,000-plus boy names.

Harry, also once top of the charts, has had tumbled by 3,600 (67 per cent) and now sits 20th, with a continuing downward trajectory.

For girls, Emily and Jessica saw the biggest falls in the past 10 years, from 3,991 to 1,170 (-70 per cent) and 2,995 to just 483 (-84 per cent), respectively. Both names were among the most common in the 1990s.