The name Effie is a girl's name of Greek origin meaning "pleasant speech". Effie and is often added to lists like Scottish Baby Names and discussed in our forums with posts like "Pick 5 (GIRLS)".
From the experts:
Effie is the old-fashioned short form for Euphemia, which seems a little too barefoot and tattered to be revivable--though you never know, wih names like Hattie and Letty making comebacks. Effie is a character in The Hunger Games.