Marie Egner was an Austrian painter.

Egner was born on 25 August 1850 in Bad Radkersburg, Austria. She took her first drawing lessons in Graz with Hermann von Königsbrunn, then went to Düsseldorf from 1872 to 1875, where she studied with Carl Jungheim. In 1882, she went to Vienna to live with her mother, but spent her summers at the art colony in Plankenberg Castle, near Neulengbach, where she took lessons with Emil Jakob Schindler until 1887. A study trip to England followed from 1887 to 1889. Shortly after, her first exhibition was held at the Vienna Künstlerhaus. She also exhibited in Germany and England.