Roger Nelson Stembel (December 27, 1810 – November 20, 1900) was an officer of the United States Navy during the Civil War.

He participated in the engagements of Lucas' Bend, September 9, 1861; Belmont, November 1861; Fort Henry, February 1862; and the bombardment and capture of Island No.

In October 1900, Admiral Stembel and his wife stopped at the Fifth Avenue Hotel in Manhattan on their way back to Washington from Rhode Island.

His wife fractured her hip in a fall and, while waiting for her recovery, he contracted a cold and then pneumonia, dying at the hotel on November 20, 1900.

Stembel was the son-in-law of James McBride of Hamilton, Ohio, and therefore connected with several prominent politicians related to the Lytle family.