Cornell George Hopley-Woolrich (December 4, 1903 – September 25, 1968) was an American novelist and short story writer who wrote using the name Cornell Woolrich, and sometimes the pseudonyms William Irish and George Hopley.

His biographer, Francis Nevins Jr., rated Woolrich the fourth best crime writer of his day, behind Dashiell Hammett, Erle Stanley Gardner and Raymond Chandler.