James Ernest McLaughlin (18 October 1873 – 17 February 1966) was a Canadian-American architect active primarily in Boston, Massachusetts, and the surrounding area from about 1905 through the 1950s. He designed Fenway Park—home stadium of the Boston Red Sox baseball team—among many other buildings in Massachusetts. Early in his career, McLaughlin collaborated on some designs with his maternal uncle and fellow architect James Mulcahy. From 1920 onward, McLaughlin was partnered with architect George Houston Burr under the name McLaughlin and Burr.