Helmut Piirimäe, Estonian historian and academic
Helmut Piirimäe (September 8, 1930 – 21 August 2017) was a prominent Estonian historian. He was professor emeritus of University of Tartu, and an honorary doctor of University of Uppsala.

Piirimäe researched Estonian history under the Swedish Empire in the 17th century, but also the Enlightenment in the 18th century, especially the French Revolution.

Helmut Piirimäe was married to art historian Krista Piirimäe. They have three sons and a daughter.