Friedrich Arnold
Friedrich Arnold is the name of the following people:
- Friedrich Arnold (copperplate engraver) (1780–1809), German copperplate engraver
- Friedrich Arnold (master builder) (1786–1854), German master builder
- Friedrich Arnold (physician) (also Philipp Friedrich Arnold ; 1803–1890), German anatomist, pathologist and physiologist
- Friedrich Arnold (painter) (1815–1854), French painter and draftsman
- Friedrich Arnold (Major General) (1823–1881), German Major General
- Friedrich Arnold (politician) (1912-1969), German politician (CSU)
- Friedrich Arnold (soldier) (1919–2006), German officer
- Friedrich August Arnold (1812–1869), German orientalist and educator
- Friedrich Christian von Arnold (1786–1868), German lawyer, civil servant and specialist author
- Friedrich Wilhelm Arnold (1810–1864), German musician, music dealer and music writer