Roger Nelson Stembel (December 27, 1810 – November 20, 1900) was an officer of the United States Navy during the Civil War.
Stembel, born in Middletown, Maryland, was appointed midshipman in the United States Navy on March 27, 1832.
He served in the West Indies, Mediterranean, Home, Brazil, China, and East India Squadrons prior to the Civil War.