The name Ilma is a girl's name of Spanish, Hungarian, Finnish origin meaning "air". Ilma and is often added to lists like Names That Mean Air and discussed in our forums with posts like "A Lot Can Happen In Sixty Years - Part 2".
From the experts:
A name that's unknown in the U.S. and Britain but is popular as a nature name in Finland. May also be known as a Hungarian variation of Amelia and a Spanish form of Wilhelmina.