Anja Ignatius (2 July 1911 – 10 April 1995) was a Finnish violinist and music educator, mainly known as a chamber musician.

Ignatius studied in Finland, at the Paris Conservatory and in Prague.

Besides concerts in Finland, Ignatius performed in Sweden, Norway, Denmark, Germany, Great Britain, France, Poland, the Soviet Union and the United States.

From 1953 to 1961, she played first violin with the Helsinki Quartet; from 1961 to 1965, she performed in a trio with France Ellegaard and Pentti Rautawaara [fi].

[1] In 1955, Ignatius became a professor teaching violin at the Sibelius Academy.