The Audi allroad quattro is an automotive nameplate used by the German automobile manufacturer Audi since 1999. Audi has utilised the name "allroad quattro" to signify semi-offroad ability on two of its mainstream model lines. The main differences between the allroad and the base model are a wider track (made possible by plastic wheel arch extensions), higher ground clearance and adjustable air suspension.
Originally, the name "Audi allroad quattro" applied to a semi-offroad version of the Audi A6 Avant (wagon) in 1999. Audi retitled subsequent generations, as released in 2006 and 2012, as "Audi A6 allroad quattro".
Since 2009, Audi has offered the "Audi A4 allroad quattro", based on the mainstream Audi A4 Avant (wagon).