NVA is a three-letter abbreviation for

1. North Vietnamese Army
2. Nationale Volksarmee, the National People's Army of the former German Democratic Republic (East Germany)
3. Nieuw-Vlaamse Alliantie, Belgian political party.
4. National Volleyball Association
5. National Vulvodynia Association , an educational, nonprofit organization founded to disseminate information on treatment options for vulvodynia.