Allger \a-ll-ger\ as a boy's name is a variant of Alger (Old English), and the meaning of Allger is "elf spear". The baby name Allger sounds like Ellger and Allgar. Other similar baby names are Allmer, Elger, Algar, Algey, Altaer, Alter, Allvar, Aylmer, Ayllmer, Ailmer and Aillmer.