Gustav Malja (born 4 November 1995 in Malmo) is a Swedish racing driver who reached the GP2/Formula 2 ranks in the mid-2010s.
Malja came up through Formula Renault 2.0 with Josef Kaufmann Racing in 2013-2014, contesting the Eurocup and Northern European Cup and taking two wins in 2014 at Hockenheim and the Nurburgring. He moved into GP2 in 2015 with Trident and Rapax, then ran a full season with Rapax in 2016, finishing 13th overall with two podiums.
For 2017 he switched to Racing Engineering as the series was rebranded the FIA Formula 2 Championship. He again finished 13th, with his standout result a third place in the Monaco sprint race. That August he earned an F1 in-season test with the Sauber F1 Team at the Hungaroring, driving the Sauber C36-Ferrari over more than 100 laps.
After Formula 2, Malja stepped away from the single-seater ladder and moved into GT/sports-car racing, competing in Porsche one-make series including the Porsche Supercup (2018) and Porsche Carrera Cup Germany (2018-2019).