Justin Theodore McLaughlin (March 24, 1912 – September 27, 1964) was a relief pitcher in Major League Baseball who played from 1931 through 1933 for the Boston Red Sox.

A native of Brighton, Massachusetts, McLaughlin attended Boston College.

In a three-season major league career, McLaughlin posted a 10.27 ERA in 16 appearances for the Red Sox, including four strikeouts, 17 walks, 42 hits allowed and 23+2⁄3 innings of work, without gaining a decision or save.

In 1935, McLaughlin played for Falmouth in the Cape Cod Baseball League.

This biographical article relating to an American baseball pitcher born in the 1910s is a stub.