If there's one thing we know about baby names, it's that their popularity goes in cycles. These cool, vintage names from the 1940s are ready to shine again.

We covered the most common British royal names of the past 200 years in 2019, but now it’s time to take a look at aristocratic monikers that are still going strong in 2025. Data analysts from the online tool GIGAcalculator a list of the top contenders.

A name that hasn't been given to a royal baby for quite some time, Thomas has been a popular one throughout Europe, and especially in Britain, since the 13th century. More recently, it was borne by the late husband of Lady Gabriella Windsor, Thomas Kingston.