The name Laelia is a girl's name of Latin origin. Laelia and is often added to lists like Cool Girl Names from Ancient Cultures and discussed in our forums with posts like "Which would you choose?".
From the experts:
Upside: it has an interesting ancient look and feel, related to the Roman family name Laelius of uncertain meaning. There is also a type of orchid called the Laelia. Downside: possible confusion with all those Laylas, Lailas, etc. out there.