Elsa Arokallio (18 August 1892, Kurkijoki – 3 October 1982, Helsinki) was a Finnish architect.
She graduated in 1910 and obtained her degree in architecture in 1919 from Helsinki University of Technology.
[1] She created an architecture firm with her husband, Erkki Väänänen.
After four years of marriage he died, and Arokallio ran the firm herself.
After World War II she worked in Lahti with architect Könönen and designed single-family houses.