Barbara Angus CMG (15 January 1924 – 4 February 2005) was a New Zealand diplomat and historian who served as the country's ambassador to the Philippines between 1978 and 1981.

Angus had stints as a diplomat in Singapore, Sydney, Kuala Lumpur and Washington, D.C., and authored a book on Katherine Mansfield and wrote two entries for the Dictionary of New Zealand Biography.

Angus moved to Wellington in 1948 to become a research assistant for the War History Branch of the Department of Internal Affairs.

Her career at the department saw her author a series of "civilian narratives" on New Zealand's social history on women's experience in particular during the Second World War.

[1] Between 1954 and 1957, Angus was the information officer at the New Zealand Embassy in Washington, D.C.,[3] and the era meant she had no diplomatic status.

[1] While in Sydney, she was dispatched to Outer Mongolia as New Zealand's representative at the United Nations Conference on the Participation of Women in Public Life in 1965.

I think I’m one who benefits more by the struggles of other women"[1] Both the Auckland War Memorial Museum and the National Library of New Zealand hold collections of papers related to Angus.