Samuel Leever (December 23, 1871 – May 19, 1953), nicknamed "the Goshen Schoolmaster", was an American right-handed pitcher in Major League Baseball.

[4] Of that debut, the Pittsburgh Post-Gazette wrote, "The interest of the 1,300 spectators was largely centered in the work of Leever, who had his first chance in a championship game.

In 1901 and 1905 he led the league in winning percentage (14–5 and 20–5, respectively), as well as in 1903, when he had his best season, going 25–7 with a league-leading 2.06 earned run average (ERA).

However he injured his shoulder late in the season and was ineffective in the first-ever World Series, losing both of his starts as the Pirates were defeated by Boston.

His lifetime ERA was 2.47, and he had a 194–100 record, 847 strikeouts, 39 shutouts, 241 complete games, 587 walks, and only 29 home runs allowed in 2,660.2 innings.