Staehelin or Stähelin is a surname. Notable people with the surname include: Adolf Staehelin (1901–1965), Swiss chess player Jenö Staehelin (born 1940), Swiss diplomat and lawyer Lucas Andrew Staehelin (born 1939), Australian-born Swiss American cell biologist Martin Staehelin (born 1937), Swiss musicologist
Stähelin August Stähelin (1812–1886), Swiss politician Felix Stähelin (1873–1952), Swiss historian Hartmann F. Stähelin (1925–2011), Swiss pharmacologist Helene Stähelin (1891–1970), Swiss mathematician Johann Jakob Stähelin (1797–1875), Swiss theologian Rudolf Stähelin (1875–1943), Swiss physician