Craig William Millar is a professional rugby union player who plays as a prop for Japan Rugby League One club Saitama Wild Knights. Born in New Zealand, he represents Japan at international level after qualifying on residency grounds.

The Japan national rugby union team, also known as the Cherry Blossoms, Brave Blossoms, or simply Sakura, is traditionally the strongest rugby union power in Asia and has enjoyed and endured mixed results against non-Asian teams over the years. Rugby union in Japan is administered by the Japan Rugby Football Union (JRFU), which was founded in 1926. They compete annually in the Pacific Nations Cup and previously in the Asia Rugby Championship. They have also participated in every Rugby World Cup since the tournament began in 1987.