Adelheid Jaeger, née Heuser, known as Adeline (31 March 1809, Gummersbach - 17 December 1897, Bonn) was a German portrait, genre and still-life painter, associated with the Düsseldorfer Malerschule.
She was the third of six children born to the paint and wine merchant, Heinrich Daniel Theodor Heuser (1767–1848), and his wife, Katharina Luisa née Jügel (1776–1841).
After seeing a portrait of her sister Alwine, her father finally agreed to support her career choice; arranging private lessons in Düsseldorf with Hermann Stilke and Friedrich Wilhelm von Schadow, the Director of the Kunstakademie.
By the end of the 1830s, she was so well established as a portrait painter that the art historian, Hermann Püttmann [de], mentioned her in his book about the Düsseldorfer Malerschule.
In 1848, they moved to Cologne, where Friedrich had been named the pastor of a newly created parish; eventually rising to the position of Church Superintendent in 1859.