The name Orelli can refer to several different people:
- Carlo Orelli (1894–2005) was, until his death, the oldest living Italian veteran of World War I
- Giovanni Orelli (1928–2016), a Swiss poet and writer
- Johann Caspar von Orelli (1787–1849), a Swiss classical scholar
- Johann Conrad Orelli (1770–1826), the cousin to the preceding, and also a classics scholar
- Hans Konrad von Orelli (1846–1912), a Swiss theologian