Speidel or von Speidel is a surname. Notable people with the surname include:
Albert von Speidel (1858–1912), Bavarian general and artistic director of the court theatre in Munich after 1905 Bill Speidel (1912–1988), American author Edmund Freiherr von Speidel (1816–1887), Bavarian general and court marshal Emil Speidel (1859–1938), German professor in Tübingen and upper level forestry council member Hans Speidel (1897–1984), German general Hans-Georg von Seidel (1891–1955), German general of the Luftwaffe Johann Jakob Speidel (1595?–1666), German jurist Jutta Speidel (born 1954), German actress Michael P. Speidel (born 1937), German-born American military historian Maximilian von Speidel (1856–1943), Bavarian general and State Council
Persons named Speidell include: John Speidell ( 1600–1634), English mathematician Todd H. Speidell (born 1957), American theologian