E lizabeth "Liz" Uihlein is an American billionaire businesswoman who, with her husband, Richard Uihlein, founded and runs Uline, one of the largest distributors of shipping, packaging, and industrial supplies in North America. She is an heiress to the Schlitz brewing family fortune. Liz serves as the company's president and CEO, and is known for her hands-on, detail-oriented management style.

The Uihleins started the company from their basement in 1980 and have built it into a multi-billion dollar private enterprise, famous for its massive, telephone-book-sized catalog and its highly efficient distribution network. In addition to their business success, Liz and Richard Uihlein are among the most powerful and influential donors to conservative and Republican political causes in the United States, contributing hundreds of millions of dollars to various candidates and political action committees.