Olga

Olga may refer to:

People and fictional characters

Olga (name), a given name, including a list of people and fictional characters named Olga or Olha
Michael Algar (born 1962), English singer also known as "Olga"

Kata Tjuta, Northern Territory, Australia, also known as the Olgas, a group of domed rock formations
- Mount Olga, the tallest of these rock formations
Olga, Greece, a settlement
304 Olga, a main belt asteroid

Olga (opera), a 2006 Brazilian opera about Olga Benário Prestes
Olga (2004 film), a 2004 Brazilian biopic of Benário
Olga (2021 film), a Franco-Ukrainian-language Swiss drama
Olga TV, a British independent television production company
On-line Guitar Archive, a former online resource for guitar chords and tablature

OLGA (technology), an oil and gas simulator
List of storms named Olga, the name of several tropical cyclones
MV Olga, a German coaster in service 1927–59
Olga (helicopter), an S-64 Skycrane that topped the CN Tower in Toronto
Olga (horse), an equine recipient of the Dickin Medal
Führerhauptquartier Olga, an unfinished German World War II bunker facility planned for Hitler's use near Orsha, Soviet Union
Organisation of Lesbian and Gay Activists, a historical LGBT rights organization in South Africa.