Gas, Inspector Palmu! (original Finnish title: Kaasua, komisario Palmu!) is a 1961 Finnish crime movie directed by Matti Kassila. It is a sequel to Inspector Palmu's Mistake and is followed by The Stars Will Tell, Inspector Palmu. The main cast of actors is the same as that of the first though some actors such as Elina Salo, Pentti Siimes and Aino Mantsas play different characters,

It is based on the first Inspector Palmu novel Who Murdered Mrs. Skrof? (Kuka murhasi rouva Skrofin?) by Mika Waltari but was the second one filmed, after Inspector Palmu's Mistake. Unlike the first film it was produced by Fennada-Filmi. According to director Kassila, Toivo Särkkä (the producer of the first film) didn't like the story of the novel and thus its rights were purchased by Fennada producer Mauno Mäkelä, who also produced the third movie The Stars Will Tell, Inspector Palmu (1962).