List of Famous people with last name Geiger

Reinold Geiger is an Austrian billionaire, and the chairman and CEO of French cosmetics retailer L'Occitane en Provence.

Johannes Wilhelm "Hans" Geiger was a German physicist. He is best known as the co-inventor of the detector component of the Geiger counter and for the Geiger–Marsden experiment which discovered the atomic nucleus. He was the brother of meteorologist and climatologist Rudolf Geiger.

Abraham Geiger was a German rabbi and scholar, considered the founding father of Reform Judaism. Emphasizing Judaism's constant development along history and universalist traits, Geiger sought to re-formulate received forms and design what he regarded as a religion compliant with modern times.

General Roy Stanley Geiger was a United States Marine Corps four-star general who served in World War I and World War II. In World War II, he became the first Marine Corps general to lead an army-sized force.

Ludwig Geiger was a German author and historian.

Willi Geiger was a German painter.