Samuel Simon Schmucker (February 28, 1799 – July 26, 1873) was a German-American Lutheran pastor and theologian.
He was integral to the founding of the Lutheran church body known as the General Synod, as well as the oldest continuously-operating Lutheran seminary (Gettysburg Seminary) and college in North America (Gettysburg College).
Later in his career, Schmucker became a controversial figure because of his theological positions, in particular his approach to the Lutheran Confessions.
Outside of the church, Schmucker was a noted abolitionist.