Ejnar Gjessing was a Danish painter whose work was rooted in the academic tradition and shaped by both artistic practice and teaching. Born in Copenhagen, he received his early training at Vermehren's Drawing School before continuing his studies at the Royal Danish Academy of Fine Arts from 1893 to 1895.
Early in his career, Gjessing sought inspiration beyond Denmark. In 1902, he spent time in Paris, then the centre of the European art world, and between 1914 and 1918 he made several study trips to Norway and Sweden. He made his exhibition debut at Kleis in 1905 and went on to exhibit regularly, including at the Autumn Exhibition in 1906 and in several exhibitions organised by the Aalborg Art Association.
Alongside his work as an artist, Gjessing taught drawing, first at Th. Lang's Gymnasium in Silkeborg and later at Aalborg Cathedral School. For a number of years, he also led art courses in Norway, helping to share his approach to drawing and artistic form with new generations of students.
Gjessing's work is represented at the Aalborg Historical Museum and in several public commissions across North Jutland. Among his best-known works are paintings of the landscapes of northern Jutland, including those created for Kilden in Aalborg. Budolfi Church in Aalborg also houses his portrait of Bishop Chr. Ludwigs, demonstrating both his assured skill as a portrait painter and his lasting place in the region's artistic heritage.