Elissa Aalto (born Elsa Kaisa Mäkiniemi; 22 November 1922 – 12 April 1994) was a Finnish architect.

[1] Elsa Mäkiniemi graduated in architecture from the Helsinki University of Technology in 1949, and the same year she joined the office of Alvar Aalto.

She was supervising architect on several of the office’s major building projects, the earliest being the construction site for Säynätsalo Town Hall (1949–52).

Projects known to be Elissa Aalto’s independent designs include the SOS Children’s Village in Tapiola, Espoo (1964–65), and the private house Villa Hauta-aho (1982–83) in Seinäjoki.

The architect’s office worked on the repair and alteration of Alvar Aalto’s buildings, the longest-lasting task being the Vyborg Library restoration project (1927–35).