Events in the year 1910 in Japan. It corresponds to Meiji 43 (明治43年) in the Japanese calendar.

• Emperor: Emperor Meiji^[1]
• Prime Minister: Katsura Tarō

• May 14 – The Japan–British Exhibition opens at White City, London, the largest international exposition the Empire of Japan had participated in up to that time.
• May 20 – Kōtoku Incident: police searching the room of Miyashita Takichi, discover a socialist-anarchist plot to assassinate the Japanese Emperor Meiji, leading to mass arrests.^[2]
• August 22 – Japan–Korea Treaty of 1910:^{[citation needed]} Japan formally annexes Korea. The treaty was proclaimed to the public (and became effective) on August 29, 1910, officially starting the period of Japanese rule in Korea.
• October 1 – The Nippon Columbia record label is founded by Nipponophone Co., Ltd.
• November – A confectionery brand Fujiya founded in Yokohama.^{[page needed]}
• December - The Japanese Antarctic Expedition leaves Tokyo, led by Nobu Shirase.^[3]

• January 7 – Masako Shirasu, novelist (d. 1998)
• January 21 – Hideo Shinojima, footballer (d. 1975)
• February 6 – Komako Hara, film actress (d. 1968)
• February 19 – Prince Nagahisa Kitashirakawa (d. 1940)
• March 12 – Masayoshi Ōhira, politician (d. 1980)
• March 23 – Akira Kurosawa, screenwriter, producer, and director (d. 1998)
• May 16 – Higashifushimi Kunihide, Buddhist monk (d. 2014)
• September 10 – Kozaburo Hirai, composer (d. 2002)
• October 10 – Ichiji Tasaki, biophysicist (d. 2009)
• November 10 – Takeo Fujisawa, businessman (d. 1988)
• November 15 – Yatarō Kurokawa, actor (d. 1984)

• March 3 – Sasaki Takayuki, government minister and court official (b. 1830)
• April 15 – Tsutomu Sakuma, career naval officer and pioneer submarine commander (b. 1879)
• April 22 – Rokuzan Ogiwara, sculptor (b. 1879)
• June 11 – Kataharu Matsudaira daimyō (b. 1869)
• July 3
  • Tokugawa Akitake, daimyō (b. 1853)
  • Matasaburō Watanabe, politician (b. 1850)
• August 2 – Inoue Masaru, Director of Railways in Japan (b. 1843)
• August 26 – Ume Kenjirō, legal scholar (b. 1860)
• September 13 – Sone Arasuke, politician and Japanese Resident-General of Korea (b. 1849)
• October 24 – Yamada Bimyō, novelist (b. 1868)
• November 5 – Nishio Tadaatsu, daimyō (b. 1850)

• List of Japanese films of the 1910s