Luis Eleuterio Tiant Bravo[1] (Spanish pronunciation: [ˈlwis ˈtjant]; August 27, 1906 – December 10, 1976), also known as Luis Tiant Sr., was a Cuban professional baseball pitcher in Negro league baseball, the Cuban League, the Mexican League, and in the Dominican Republic.

Bill James and Rob Neyer ranked it the seventh-best screwball of all time.

In August 1975, the elder Tiant and his wife were granted permission by Cuban leader Fidel Castro to visit the United States, so they could watch their son pitch in the major leagues.

[6] They were funeralized at St. Elizabeth Catholic Church in Milton.

[7] He was often referred to as "Luis Tiant Sr." by contemporary press to differentiate him from his son.