Ulla \u(l)-la\ as a girl's name is of Old Norse origin, and the meaning of Ulla is "will, determination". Also possibly short for Ulrica.
Ulla has 2 variant forms: Oula and Ula.
For more information, see also the related name Ursula.
Baby names that sound like Ulla are Alla, Ella, Illa, Olla and Ulli.