J. I. Case

J. I. Case may refer to:


 * Case Corporation &mdash; the tractor manufacturer formerly known as the J. I. Case Company
 * Jerome Case (1819–1891) &mdash; Jerome Increase Case, farm machinery maker and racehorse owner; founder of J. I. Case Company
 * Jackson Irving Case (1865–1903) &mdash; son of Jerome Case
 * Jerome I. Case High School &mdash; a Wisconsin high school also known as "J.I. Case" or "Racine Case"