Alvin David Luplow Jr. (pronounced "LOOP-low;" March 13, 1939 – December 28, 2017) was an American professional baseball outfielder.

A native of Saginaw, Michigan, he played in Major League Baseball from 1961 through 1967 for the Cleveland Indians, New York Mets and Pittsburgh Pirates.

Luplow attended Michigan State University, where he played varsity football, before signing his first pro contract with Cleveland.

Appearing in 481 games over all or parts of seven Major League seasons, Luplow collected 292 hits (including 33 home runs) in 1,243 at bats.

He is, however, remembered for making one of the most spectacular catches in the history of Fenway Park on June 27, 1963, off the bat of Red Sox hitter Dick Williams.