Armand "Mandy" Meyer is a Swiss guitarist best known for being a member of the hard rock band Gotthard, the progressive rock band Asia, and the heavy metal band Krokus. Meyer has also worked with Cobra, Stealin' Horses, Katmandu and Unisonic.

Gotthard is a Swiss hard rock band founded in Lugano by Steve Lee and Leo Leoni. Their last eleven albums have all reached number 1 in the Swiss album charts, making them one of the most successful Swiss acts ever. With two million albums sold, they managed to get multi-platinum awards in different parts of the world. The band takes its name from the Saint-Gotthard Massif.