The name Lilac is a girl's name of English, Persian origin. Lilac and is often added to lists like Flower Names for Girls and discussed in our forums with posts like "Pick 5 Triplets Version (any gender)".
From the experts:
Could Lilac be the next Lila or Lily or Violet? It certainly has a lot going for it--those lilting double 'l's, the fabulous fragrance it exudes, and the fact that it's a color name as well, providing a ready made nursery theme. In addition, the lilac is symbolic of first love.
Actor Stephen Moyer was ahead of the curve when he named his daughter Lilac in 2002.