1904 in Japan

← 1903 1902 1901 1904 in Japan → 1905 1906 1907
Decades:	1880s 1890s 1900s 1910s 1920s
See also:	Other events of 1904 List of years in Japan

Events in the year 1904 in Japan.

Incumbents

• Emperor: Emperor Meiji
• Prime Minister: Katsura Tarō

Events

• February 8–9 – Battle of Port Arthur: A surprise Japanese naval attack on Port Arthur (Lüshun) in Manchuria starts the Russo-Japanese War.
• February 9 – Battle of Chemulpo Bay
• February 23 – Japan–Korea Treaty of 1904
• April 30–May 1 – Battle of Yalu River (1904)
• May 25–26 – Battle of Nanshan
• June 14–15 – Battle of Te-li-Ssu
• July 10 – Battle of Motien Pass
• July 24–25 – Battle of Tashihchiao
• July 31 – Battle of Hsimucheng
• August 10 – Battle of the Yellow Sea
• August 14 – Battle off Ulsan
• August 20 – Battle of Korsakov
• August 22 – Japan–Korea Agreement of August 1904
• August 24–September 4 – Battle of Liaoyang
• October 5–17 – Battle of Shaho

Births

• July 18 – Fuji Yahiro, screen writer (d. 1986)
• July 25 – Katsuji Matsumoto, illustrator (d. 1986)
• December 28 – Tatsuo Hori, writer, poet and translator (d. 1953)

Deaths

• January 1 – Konoe Atsumaro, politician and journalist (b. 1863)
• January 9 – Ii Naonori, former daimyō, son of Ii Naosuke (b. 1848)
• February 6 – Utagawa Yoshiiku, artist (b. 1833)
• March 27 – Takeo Hirose, navy career officer (b. 1868)
• August 12 – Kawamura Sumiyoshi, admiral (b. 1836)
• August 31 – Tachibana Shūta, soldier (b. 1865)
• September 26 – Koizumi Yakumo, writer (b. 1850)