Pfeifer (/ˈfaɪfər/ FY-fər, German: [ˈpfaɪfɐ] ⓘ) is a German-language occupational surname meaning "whistler" or "pipe-" or "fife-player" and etymologically akin to English Piper and Fifer; other spellings include Pfeiffer.
The spelling Pfeifer may refer to: