Monolith Software Inc., trading as Monolith Soft, is a Japanese video game development studio originally owned by Namco until being bought out by Nintendo in 2007, best known for the Xenoblade Chronicles series of games. The company was founded in 1999 by Tetsuya Takahashi with the support and cooperation of Masaya Nakamura, the founder of Namco. Their first project was the Xenosaga series, a spiritual successor to the Square-developed Xenogears. Multiple Square staff would join Takahashi at Monolith Soft including Hirohide Sugiura and Yasuyuki Honne.

Masaya Nakamura was a Japanese businessman and the founder of Namco. He was the company's president up until 2002, where he took a ceremonial role in its management. Following the formation of Bandai Namco Holdings, Nakamura would retain an honorary position in the video game division, Bandai Namco Entertainment.