Keita Inagaki (????, Inagaki Keita?, born 2 June 1990 in Niigata) is a Japanese rugby union player who currently plays as a prop for the Melbourne Rebels in the international Super Rugby competition. He also plays for Top 14 side the Panasonic Wild Knights in his home country.
Inagaki started his professional career with the Panasonic Wild Knights where he lifted the Top League title in each of his first 2 seasons and was named in the Top League team of the year for 2014-15. Such was his impact in his first two seasons as a professional that when injuries struck the Melbourne Rebels 2 Japanese players Shota Horie and Male Sa'u, Inagaki was signed up as a concessional signing on a one-year deal ahead of the 2015 Super Rugby season.
Inagaki featured in all four of Japan's games during the 2014 end-of-year rugby union internationals with the first two matches being non-cap internationals against the M?ori All Blacks. His official test debut came against Romania in Bucharest on 15 November 2014 and he won his second cap a week later against Georgia in Tblisi.