Rudolf Staechelin (May 8, 1881 – January 3, 1946) was a Swiss businessman and art collector. He is considered one of the major Swiss collectors of the first half of the 20th century.
Staechelin was born in Basel, Switzerland, to the master builder and contractor, Gregor Staechelin, and his wife Emma, née Allgeier. His father's family was originally from Istein, Germany. In 1922, he married Emma Mina Finkbeiner.
Staechelin's collection initially focused on French Impressionism and Post-Impressionism, later expanding to include East Asian art. In 1931, the Rudolf Staechelin’sche Familienstiftung (Rudolf Staechelin's Family Foundation) was established to act as custodian of the collection. Parts of the collection have been on loan for several decades to the Kunstmuseum Basel and the Musée d'Art et d'Histoire in Geneva.
- Muller, Nafea, p. 9.
- Muller, Nafea, p. 25.
- Staechelin, Rudolf at Historischen Lexikon der Schweiz (Historical Dictionary of Switzerland)