Sylvester D. Rhodes (December 1, 1842 – August 29, 1904) was a Union Army soldier during the American Civil War. He received the Medal of Honor for gallantry during the Battle of Fisher's Hill near Strasburg, Virginia fought September 21–22, 1864. The battle was one of the engagements of the Valley Campaigns of 1864. Rhodes joined the army from Wilkes-Barre, Pennsylvania in September 1861. He was commissioned as an officer in December 1864, and was mustered out in June 1865.