This is old news, but I just learned about it for the first time:
In 2005, after winning the 5,000m at the World Athletics Championships, which were held in Finland, Kenyan runner Benjamin Kipkoech Limo renamed his newborn son Helsinki.
The baby, born just 6 days before the race, had previously been known as Tony.
Limo and his wife also have three daughters. I’m not sure what their names are.
Source: Son renamed after Kenyan’s gold