List of Japanese World War II experts in Russian/Soviet topics from the 1920s until the end of World War II. The experts listed here acquired their knowledge during the Russo-Japanese War, 1918-27 Siberian intervention, and diplomatic attachés to the Soviet Union.

• Aritomo Yamagata
• Saburo Hayashi
• Michitarō Komatsubara
• Motojiro Akashi
• Korechika Anami
• Sadao Araki
• Okikatsu Arao (Koko)
• Kitsuju Ayabe
• Masutaro Nakai
• Shōjirō Iida
• Toshizō Nishio
• Torashirō Kawabe
• Minoru Sasaki
• Kantarō Suzuki
• Jun Ushiroku
• Otozō Yamada
• Jirō Minami
• Kyoji Tominaga
• Heitarō Kimura
• Shigenori Kuroda
• Mitsumasa Yonai