Giftgas

Giftgas may refer to:


 * Giftgas (film) starring Gerhard Dammann
 * Giftgas (record) on Throbbing Gristle discography
 * Giftgas! the second full-length studio album by Canadian Holocaust denier national socialist black metal one-man band Blood Libel
 * Giftgas, episode in List of Inspector Rex episodes
 * A German word meaning "poison gas"
 * Zyklon B gas used by Nazi Germany for extermination of Jews, featuring the warning "GIFTGAS!" prominently on its label
 * A frequent mis-hearing for Giffgaff (a British mobile phone service), often in the recorded message "This is Giffgaff voicemail"