David John McCosh (1903 Cedar Rapids, Iowa – 1981 Eugene, Oregon) was a Northwest American artist and art instructor.
McCosh graduated from the School of Art Institute of Chicago (AIC) in 1926 and began his teaching career there in 1931.
In 1934 McCosh traveled to Santa Fe, New Mexico to marry painter Anne Kutka in the company of his new in-laws, artists and art instructors Suzanne Kutka Boss and Homer Boss.
There he taught courses in lithography, drawing, oil painting and watercolors at the University of Oregon from 1934 through to his retirement in 1970.
Included were personal letters, sketch books, and audio interviews with other artists.