Ken Okuyama is a Japanese industrial designer. He is the owner of the Ken Okuyama Design company. Okuyama formerly worked for Pininfarina, designing and supervising projects such as the Enzo Ferrari and Ferrari P4/5.

In 2008, Ken Okuyama presented his first concept car under his own name, the K.O. 7 Spider, a carbon fiber reinforced polymer and unpainted aluminium two-seater. The K.O. 7 was unveiled at the Geneva Motor Show in March 2008. Ken Okuyama has cooperated with the luxury watch producer TAG Heuer, having fitted the TAG Heuer Grand Carrera at the dashboard of the car. The interior of the concept car was inspired by the design of the TAG Heuer watch.

In 2008, Ken Okuyama's design studio produced the first 20 models of the K.O. 7 Spider, already pre-sold to an "inner circle" of the designer's fans. It was followed by the production of 99 cars in 2009 and 99 more in 2010.

In 2016, Ken Okuyama revealed the Kode 57. This will be an additional member to the limited-edition family, as only five units will be produced. At the time of the writing approx 3 examples have been made. On August 18, Ken Okuyama Cars unveiled its world premiere of a new one-off supercar – the Kode 0 (Zero) – at The Quail Motor Sport Gathering.