Hikaru Saeki (佐伯 光, Saeki Hikaru, 3 April 1943 –) is the first female admiral of the Japan Maritime Self-Defense Force (JMSDF) and the first female in the entire Japan Self-Defense Forces (JSDF) to achieve star rank.

[2] In April 1989, Saeki enrolled into the JMSDF as a physician, commissioned as commander in August 1990,[4] then captain in March 1992.

She was assigned to Kyoto in December 1997 to take the post of Director, JSDF Hospital Maizuru.

[3] She also conducted the improvement of child care environment inside the Self-Defense Forces,[1][6] it was under her proposal that the JSDF issued uniforms in the type of maternity dress to pregnant service members.

He retired in 1997 with the rank of vice admiral, and was awarded the Order of the Sacred Treasure, Gold Rays with Neck Ribbon by the Japanese government in 2011.