Faulstich is the surname of:
- Edith Margaret Faulstich (1907–1972), American philatelist and philatelic journalist
- Gerhard Faulstich, German baritone
- Marga Faulstich (1915–1998), German glass chemist
- Martin Faulstich (born 1957), German research scientist
- Nikolaus Faulstich (1837–??)
- Peter Faulstich (1946–2016)
- Werner Faulstich (1946–2019)
- E. W. Faulstich (c.1983), author of History, Harmony, and the Hebrew Kings