Williams' 2012 challenger, the FW34, will see the light of day at Spain's Jerez circuit on Tuesday February 7.
The unveiling of the Renault-powered car will take place shortly before the start of the first pre-season test and will take place in the pitlane.
"The car will be rolled out of the garage for a photocall with drivers Pastor Maldonado and Bruno Senna between 0830 and 0840," a statement from the team read.
The Grove-based squad endured their worst season in Formula One in 2011 as they picked up just five points and finished ninth in the Constructors' Championship.
