Isak Johan Emerik Gustaf Stenberg (7 January 1873 – 31 July 1927)[1] was a Swedish draftsman, painter and folklorist.

His father, Gustaf, was a Commissioner in the Swedish National Audit Office.

He was captivated by the folk culture there and settled in the village of Ullvi, near Leksand, in 1897; decorating his farm with locally made furniture and craft objects.

A painting he produced at that time (Wake in Leksand) was successfully shown at the General Art and Industrial Exposition of Stockholm.

Opposition to the Academy's traditional teaching methods eventually led him to resign.