Ken Kutaragi (久夛良木 健, Kutaragi Ken; born 2 August 1950) is a Japanese engineering technologist and businessman, currently president and CEO of Cyber AI Entertainment. Formerly the chairman and CEO of Sony Computer Entertainment (SCE), the video game division of Sony, Kutaragi is known as "The Father of the PlayStation" having overseen the development of the original console and its successors and spinoffs until departing the company in 2007, shortly after the PlayStation 3 was released.

Kutaragi had also designed the sound processor for the Super Nintendo Entertainment System. With Sony, he designed the VLSI chip that works in conjunction with the PS1's RISC CPU to handle the graphics rendering.

Kutaragi was born in Tokyo, Japan, in 1950. His parents, although not wealthy by Japanese standards, still managed to own their own business, a small printing plant in the city. As Kutaragi grew into childhood, they actively encouraged the young boy to explore his mechanical abilities in the plant, and he worked after school there. Aside from his duties in his parents' factory, Kutaragi was a studious, high-level student.

Kutaragi always had the desire to "tinker", often taking apart toys as a child rather than playing with them. This curiosity carried from childhood, leading him as a teenager to learn the intricacies of electronics. Eventually, in fact, his love of electronics led to him enrolling in University of Electro-Communications, where he acquired an Electronics degree in the 1970s.

Immediately after graduation, Kutaragi began working for Sony in their digital research labs in the mid-1970s. Although at the time it was considered a radical decision, Kutaragi felt that Sony was on the "fast track". He quickly gained a reputation as an excellent problem solver and a forward-thinking engineer, earning that reputation by working on many successful projects, including early liquid crystal displays (LCDs) and digital cameras.^{[citation needed]}

In 1983, he was watching his two-year-old daughter play a Famicom and realized the potential that existed within video games. Thus, when Nintendo expressed the need for a sound chip for its upcoming new 16-bit system, Kutaragi accepted the offer. Working in secret, he designed the chip, the SPC700. At that particular time, Sony's executives had no interest in video games. When they found out about the secret collaboration, they were furious. Only with Sony CEO Norio Ohga's approval was Kutaragi able to complete the chip and keep his job.

Even while working with Nintendo, within Sony, gaming was still regarded as a fad. Despite this hostile atmosphere to video games, Kutaragi managed to persuade Ohga into working with Nintendo to develop a CD-ROM add-on for the Super NES that would be released alongside a Sony branded console that could play both Super NES cartridges and CD games. These efforts resulted in a device called the "Play Station". Eventually, the partnership between Sony and Nintendo faltered due to licensing disagreements, but Kutaragi and Sony continued to develop their own console. He wanted to utilize Sony's access to the latest technology in creating the most powerful home console available, unlike Nintendo, which used primitive, outdated technology to create their consoles. He also noticed that Nintendo focused mainly on children, so he wanted Sony's console to target older adult gamers, as he felt it was a market not yet tapped by any of the available home consoles. Kutaragi later recalled staying up all night working on the console design for several nights in a row "because our work was so interesting." Despite being considered a risky gamble by other Sony executives, Kutaragi once again had the support of Ohga and several years later the company released the original PlayStation. The success of the PlayStation led to him heading up the development of successor consoles, the PlayStation 2 and PlayStation 3.

The commercial success of the PlayStation franchise makes Sony Computer Entertainment the most profitable business division of Sony. Despite being an upstart in the console market against veterans Nintendo and Sega, the first PlayStation displaced them both to become the most popular console of that era. The PlayStation 2 extended Sony's lead in the following generation, at one point holding a 65% market share with 100 million units shipped. Kutaragi was recognized by many financial and technological publications for this success, most notably when he was named one of the 100 most influential people of 2004 in TIME magazine and the "Gutenberg of Video Games".