Leondaus "Lee" Lacy (born April 10, 1948) is an American former professional baseball outfielder.

He played sixteen seasons in Major League Baseball (MLB) for the Los Angeles Dodgers, Atlanta Braves, Pittsburgh Pirates, and Baltimore Orioles between 1972 and 1987.

On May 17, 1978, Lacy hit his third consecutive pinch-hit home run, setting a major league record, as the Dodgers beat the Pirates, 10–1.

The next year, he was given a 60-day suspension but was allowed to continue playing if he donated five percent of his base salary and performed 50 hours of drug-related community service.

On June 8, 1986, as a member of the Orioles, Lacy hit three home runs and had six RBI in an 18-9 win over the Yankees.