The Nationalist Party of Greater Vietnam (in Vietnamese: Đại Việt Quốc dân đảng, pronounced [ʔɗaːj˧˨ʔ viət̚˧˨ʔ kuək̚˧˦ zən˧˧ ʔɗaːŋ˧˩]), often known simply as Đại Việt or ĐVQDĐ, is a nationalist and anti-communist political party and militant organisation that was active in Vietnam in the 20th century.

Among the original members were several prominent figures in Vietnam's politics, such as Dr. Phan Huy Quát and Dr. Nguyễn Tôn Hoàn.

[5] During the era of French colonialism, the Đại Việt engaged in military attacks in an effort to gain independence.

[citation needed] Elitism crippled the party, preventing it from forming a broad base of support among the public.

According to Edwin M. Moise, the Đại Việt were compelled to rely extensively on foreign support, which jeopardized their nationalism's legitimacy.