Down-home nickname name once associated with the friendly dragon on kids' TV.

Ollie is used less often as a nickname for the mega-popular Olivia or the stylish Olive than Ellie is for Eleanor or Allie for Allison. That may be because Ollie has a much longer use as a nickname for boys. But 83 baby girls were given the name Ollie on their birth certificates in the US in 2021.