Jeff Nelsen (born December 11, 1969) is a Canadian French horn player.
While at university, he won an audition for an orchestral spot, subsequently leaving school to take the position as fourth horn in the Winnipeg Symphony.
He has performed recitals and concerti with orchestras in North and South America, Asia, Europe, and Australia.
He was recruited to Indiana University's Jacobs School of Music, where he currently teaches.
He has performed as a part of the orchestra for two Broadway shows (Chitty Chitty Bang Bang and "The Pirate Queen"), toured with Michael Bolton and Barry Manilow, and performed in the Balkan Gypsy funk band of Slavic Soul Party.