Louis Kugelmann

Louis Kugelmann, or Ludwig Kugelmann (February 19, 1828, Lemförde - January 9, 1902 Hannover) was a German gynecologist, social democratic thinker and activist, and confidant of Marx and Engels.

He met with Karl Marx several times, visited him in Hannover, and exchanged letters with him during the period 1862 to 1875. He was a member of the International Workingmen's Association and later the Social Democratic Party of Germany (SPD).