- Sacrifice Bunt (1887)
- Sacrifice Fly (1878)
- Sacrifice Hit (1877)
- Sacrifice Hitter (1877)
- Safety Squeeze (1911)
- Salary Drive (1935)
- Scratch Hit (1875)
- Scratch Single (1883)
- Screwball (Pitch) (1921)
- Screwball (Zany Player) (1926)
- Scroogie (1949)
- Second Division (1891)
- Shoestring Catch (1904)
- Shutout (1879)
- Slab Artist (1895)
- Sliding Catch (1890)
- Slug (1879)
- Slugger (1880)
- Slurve (1966)
- Solid Up the Middle (1955)
- Speed Merchant (Baserunner) (1899)
- Speed Merchant (Pitcher) (1897)
- Squeeze Play (1905)
- Streak Hitter (1908)
- Strikeout King (1905)
- Submarine Ball (1916)
- Subway Series (1921)
- Sultan of Swat (1911)
- Suicide Squeeze (1929)
- Swing from the Heels (1912)
- Swinging Bunt (1908)
