
Helmut Vaag (born Arthur-Helmuth Vaag; May 29, 1911 Juuru Parish – July 8, 1978 Tallinn) was an Estonian actor and director.
1927-1931 he studied at Tallinn Töölisteater's studying studio. 1933–1940 he was an actor at Tallinn Töölisteater, 1940–1951 and 1961–1975 at Estonian Drama Theatre, 1952–1953 at Estonian Puppet Theatre. 1952–1961 he was an estrade actor at Estonian SSR State Philharmonic (nowadays Eesti Kontsert). Besides theatre roles he played also in several films.

The Last Relic
1970 · as Innkeeper (uncredited)

Landing
1973 · as Ella's Husband

The Midday Ferry
1967 · as Man in the Bus

The Milkman of Mäeküla
1965

Windy Beach
1971

The Ambassador of the Soviet Union
1970 · as papa Gunar

Young Pensioner
1972 · as Leopold

The Lark
1964 · as Bar Owner

What Happened To Andres Lapeteus?
1967 · as Party Guest (uncredited)

Men Don't Cry
1969 · as Head-lifeguard

The New Devil of Hellsbottom
1965 · as Auctioneer (uncredited)

A Young Retiree
1971