Yasuji Okamura (岡村 寧次, Okamura Yasuji^?, 15 May 1884 – 2 September 1966) was a general of the Imperial Japanese Army, war criminal, and commander-in-chief of the China Expeditionary Army from November 1944 to the end of World War II.

Born in Tokyo in 1884, Okamura enrolled in Sakamachi Elementary School and graduated eight years later. In 1897, he entered Waseda Junior High School. In 1898, he was transferred to Tokyo Junior Army School, and was transferred to Army Central Junior School later. Okamura entered the 16th class of the Imperial Japanese Army Academy in 1899 and graduated in 1904. His classmates included the future generals Itagaki Seishiro, Kenji Doihara and Ando Rikichi. He was commissioned a lieutenant in the IJA 1st Infantry Regiment.

In 1910, Okamura entered the 25th class of the Army War College, and was promoted to captain soon after graduation in 1913. He served in a number of staff positions on the Imperial Japanese Army General Staff during and after World War I. He moved briefly to China in the early 1920s, and served as a military advisor to a Chinese warlord.