G6

G6, G.VI, G.6 or G-6 may refer to:

International politics

• G6 (EU), the six largest European Union members
• Group of Six, a 1975 international summit which led to the G7 and G8
• 44th G7 summit, referred to as the "G6+1" or just "G6" due to a significant internal conflict with the United States

Transportation

• G6 Beijing–Lhasa Expressway, a highway in China

Land

• G6 howitzer, a South African self-propelled howitzer
• Ford G6, an automobile manufactured by the Ford Motor Company of Australia
• Mazda G6 engine, a piston engine made by Mazda
• Pontiac G6, a mid-size car that was produced under the Pontiac brand of American automaker General Motors
• Vossloh G6, shunting locomotive
• LNER Class G6, a class of British steam locomotives

Air

• Caudron G.6, a 1916 French reconnaissance aircraft
• Bf 109 G-6, Variant of a World War 2 German fighter aircraft
• Gulfstream G650, a business jet aircraft

Other

• G6, the third note in the whistle register
• G6 star, a subclass of G-class stars
• Group 6 element of the periodic table
• G6, a square on a chessboard or a move of a pawn to that square in algebraic chess notation
• LG G6, a smartphone manufactured by LG
• Moto G6, a smartphone by Motorola Mobility
• Samsung Galaxy S6, a smartphone by Samsung Mobile
• Like a G6, a song by Far East Movement