Leland Stanford Roberts (1884–1949), commonly known as Lee S. Roberts, was an American composer and pianist.
He is best known for his composition 'Smiles', written in 1917, but was a prolific composer across many genres of music.
He was also the Vice-President of the QRS Music Roll Company, and recorded hundreds of piano rolls under his name and also the pseudonym Stanford Robar. He was particularly active in recording salon and ballad style music.