Alonzo P. "Lon" Knight, born Alonzo P. Letti (June 16, 1853 – April 23, 1932), was an American right fielder, right-handed pitcher and manager in Major League Baseball. He threw the first pitch in the first game played in the new National League on April 22, 1876. On May 21, 1880, he was playing right field at Riverside Park in Albany, New York when Lip Pike hit a ball over the fence and into the river. Few parks at the time had ground rules concerning balls hit over the fence. It was not an automatic home run, so Knight pursued the ball in a boat, eventually giving up.