Events from the year 1945 in the Republic of China. This year is numbered Minguo 34 according to the official Republic of China calendar.

• President – Chiang Kai-shek
• Premier – Chiang Kai-shek (until 31 May); T. V. Soong (starting 31 May)
• Vice Premier – H. H. Kung (until 4 June); Weng Wenhao (starting 4 June)

• August 4 — Second Guangxi Campaign in Guangxi.
• August 9–20 — Soviet invasion of Manchuria
• August 14 — The signing of Sino-Soviet Treaty of Friendship and Alliance between the Republic of China and Soviet Union.
• August 13–28 — Southern Jiangsu Campaign.
• August 15–23 — Battle of Baoying in Jiangsu.
• August 16–19 — Battle of Yongjiazhen in Anhui.
• August 17 — Battle of Tianmen in Hubei.
• August 24 — Battle of Wuhe in Anhui.
• August 26–27 — Battle of Yinji in Henan.

• September 1–13 — Battle of Dazhongji in Jiangsu.
• September 4–5 — Battle of Lingbi in Anhui.
• September 8–12 — Taixing Campaign in Jiangsu.
• September 13–17 — Wudi Campaign in Shandong.
• September 18 — Battle of Xiangshuikou in Jiangsu.
• September 21 — Battle of Rugao in Jiangsu.

• October 10 — Double Tenth Agreement signing in Chongqing.
• October 12 — Peip'ing C-46 crash near Beiping.
• October 18 — Battle of Houmajia in Anhui.
• October 25
  • Retrocession Day of Taiwan in Zhongshan Hall in Taipei, Taiwan.^[1]
  • The establishment of Taiwan Provincial Government in Taiwan.

• November 15 — The renaming of Taihoku Imperial University to National Taiwan University in Taiwan.

• December 19–21 — Battle of Shaobo in Jiangsu.
• December 19–26 — Gaoyou–Shaobo Campaign in Jiangsu.
• December 21–30 — Battle of Tangtou–Guocun in Jiangsu.

• Chen Yuan, economist and eldest son of Chen Yun

• February 12 — Roman Tam, Hong Kong singer (d. 2002)
• February 19 — Nan Rendong, astronomer (d. 2017)

• March 14 — Wang Liqun, historian

• April 5 — Yu Zhengsheng, 8th Chairman of the Chinese People's Political Consultative Conference
• April 11 — An Min, politician
• April 25 — Chiang Hsiao-wu, second son of Chiang Ching-kuo (d. 1991)

• June 1 — Stanley Fung, Hong Kong actor and film director
• June 23 — Michael Sze, Hong Kong government official (d. 2022)
• June 26 — Paul Chun, Hong Kong actor

• July 21 — Lydia Shum, Hong Kong-Canadian comedian, MC, actress and singer (d. 2008)
• Bai Jingfu, politician

• August 7 — Li Dequn, material scientist (d. 2022)
• August 11 — Ma Dehua, actor

• September 24 — Chen Kuan-tai, Hong Kong martial arts actor, director and action choreographer
• September 26 — Ji Yunshi, politician

• October 15 — Deng Nan, politician and physicist
• October 22 — Liu Dawei, painter
• October 25 — Lin Kuang-hua, Governor of Taiwan Province (2003-2006)
• October 29 — Ching Li, Hong Kong actress (d. 2017)
• Wang Hongju, 16th Mayor of Chongqing

• November 3 — Eryue He, historical fiction writer (d. 2018)
• November 16 — Zong Qinghou, businessman (d. 2024)
• November 17 — Jenny Hu, Hong Kong actress
• November 22 — Liu Yandong, former Vice Premier of China
• November 26
  • Huo Da, Hui writer
  • Shang Chuan, historian (d. 2017)
• Sun Dafa, general of the People's Liberation Army (d. 2019)

• December 15 — Ge Jianxiong, historical geographer
• December 23
  • Lin Liguo, son of Chinese Marshal Lin Biao (d. 1971)
  • Min Huifen, erhu performer (d. 2014)

• January 26 — Ma Lin, 2nd Governor of Qinghai (b. 1876)
• September 15 — Zhang Mingqi, last Viceroy of Liangguang (b. 1875)
• September 17 — Yu Dafu, short story writer and poet (b. 1896)
• October 30 — Xian Xinghai, composer (b. 1905)
• December 25 — Wang Kemin, leading official in the Chinese republican movement and the Beiyang government (b. 1876)

• Peng Yubin

• List of Chinese films of the 1940s