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 [de] (1837–??)
• Peter Faulstich [de] (1946–2016)
• Werner Faulstich [de] (1946–2019)
• E. W. Faulstich (c.1983), author of History, Harmony, and the Hebrew Kings