Nils Gustaf Nicolaus Bergensköld (1838–1907) was a Swedish-American Lutheran clergyman and an early leader of the revivalist movement within Swedish immigrant settlements of the Midwestern United States during the later part of the 19th century.

After completing his education, he served as a priest (1865–1867) of Överums Church which had been established in 1862 at the mill town of Överums bruk in Småland under the guidance of the "Reader Count" Adolphe Stackelberg (1822–1871) who was an enthusiast within the Swedish Lutheran revivalist and missionary movement.

However, several of the members on the board of deacons arranged private devotional services led by Bergensköld.

In 1873, Bergensköld moved to the Swedish-American community in Marshall County, Kansas where he again helped set up a new mission society.

[5][6] Later he returned to Buena Vista County, Iowa where he took over as minister of a newly established Lutheran congregation, the Swedish Evangelical Ljunghed Church, a post he served between 1877 and 1881.