O'Connor Building

O'Connor Building may refer to:


 * Sandra Day O'Connor United States Courthouse, also known as Sandra Day O'Connor Federal Building, Phoenix, Arizona
 * J.S. O'Connor American Rich Cut Glassware Factory, Hawley, Pennsylvania
 * Morrison Block, also known as M. O'Connor Grocery Wholesalers, Indianapolis, Indiana
 * O'Connor-Proctor Building, Victoria, Texas