Morten Eskesen (5 January 1826 - 8 February 1913) was a Danish author, composer and teacher in independent and folk high schools.
He associated with Christen Mikkelsen Kold, who is credited with setting the model for Danish schools, and N. F. S. Grundtvig.
From 1853 to 1854 Eskesen was the folk high school superintendent in Uth, near Horsens in east Jutland.
In 1874 he published a widely used songbook Nordiske Sange til brug ved Folkemøder, Skytteforeninger og i Skoler samlede af Morten Eskesen (lit: Nordic Songs to use in Folk Meetings, Shooting Associations and Schools, Gathered Together by Morten Eskesen), which was reprinted in several enhanced editions in the following years.
This influence manifested in later life as staunch nationalism, leading him to be considered a fanatic in some circles.