Albert Baertsoen (9 January 1866 – 9 June 1922) was a Belgian painter, pastellist and graphic artist.

In 1882, he began attending the Royal Academy of Fine Arts, where he studied under Gustave Den Duyts and Jean Delvin.

He continued his studies in Paris, at the art school of Alfred Philippe Roll, and exhibited at the Salon in 1889.

The following year, he accompanied James Ensor, Frantz Charlet and other Belgian painters on a study trip to London.

The years 1894/95 saw another stay in Paris, where his painting "Oude Vlaamse Vaart" (Old Flemish Sails) was acquired by the Musée du Luxembourg and he participated in an exhibition held by La Libre Esthétique.