The Swiss Gambit is a chess opening which is an offshoot of Bird's Opening (1.f4) and begins with the moves: The following were the main lines of the Swiss Gambit given by F. A. Lange in 1859: Polish theoretician Alexander Wagner (1868–1942) published an article entitled A New Gambit.

The Swiss Gambit in 1912.

The Wagner Gambit begins with the moves: 1.f4 f5 2.e4 fxe4 3.Nc3 Nf6 4.g4.

[1] The term "Swiss Gambit" is also used colloquially to describe a strategy for Swiss system tournaments.

In a "Swiss Gambit", a player loses or draws against weaker players early in the tournament, in the hope of being paired against weaker opposition in later rounds and finishing in the prize money.