Ronald Earl Willis (July 12, 1943 – November 21, 1977) was a professional baseball player.
He was a pitcher over parts of 5 seasons (1966–1970) with the St.
Louis Cardinals, Houston Astros and San Diego Padres.
Willis was a member of the 1967 World Series champion Cardinals.
For his career he compiled an 11–12 record with a 3.32 earned run average and 128 strikeouts in 188 appearances, all as a relief pitcher.
In 238.1 innings of work, he handled 80 chances (24 putouts, 56 assists) without an error for a perfect 1.000 fielding percentage.
Willis was born in Willisville, Tennessee and later died in Memphis, Tennessee at the age of 34 from a brain tumor.