The 1978 Air Canada Silver Broom, the men's world curling championship, was held from March 27 to April 2 at the Winnipeg Arena in Winnipeg, Manitoba, Canada.

Fourth: Ed Lukowich Skip: Mike Chernoff Second: Dale Johnston Lead: Ron Schindle Skip: Arvid Petersen Third: Arne Pedersen Second: John Christiansen Lead: Erik Kelnaes Skip: Pierre Boan Third: Pierre Duclos Second: Honore Brangi Lead: Jean-Claude Gachet Skip: Keith Wendorf Third: Balint von Bery Second: Sascha Fischer-Weppler Lead: Heino von L'Estocq Skip: Leone Rezzadore Third: Roberto Zangara Second: Franco Caldara Lead: Roberto Bocus Skip: Kristian Sørum Third: Morten Sørum Second: Eigil Ramsfjell Lead: Gunnar Meland Skip: James Sanderson Third: Iain Baxter Second: Willie Sanderson Lead: Colin Baxter Skip: Tom Schaeffer Third: Svante Ödman Second: Fred Ridderstad Lead: Claes-Göran Carlman Skip: Fred Collioud Third: Roland Schneider Second: René Collioud Lead: Kurt Schneider Skip: Bob Nichols Third: Bill Strum Second: Tom Locken Lead: Bob Christman