Jiang Guangnai (simplified Chinese: 蒋光鼐; traditional Chinese: 蔣光鼐; pinyin: Jiǎng Guāngnài; Wade–Giles: Chiang Kuang-nai; Jyutping: Zoeng2 Gwong1 Naai5; 17 December 1888 – 8 June 1967) was a general and statesman in the Republic of China and the People's Republic of China, and was born in Dongguan, Guangdong.

He became a bodyguard to Sun Yat-sen and, in 1932, was promoted to general and Commander in Chief of the 19th Route Army, leading it in the successful defense of Shanghai against Japanese invasion in the January 28 incident.

After the cease-fire was brokered, the 19th Army was reassigned by Chiang Kai-shek to suppress Chinese Communist insurrection in Fujian.

The new Fujian government was not supported by other warlords or by all elements of the communists and was quickly crushed by Chiang's armies in January 1934.

After the Communist victory, Mao assigned Jiang to be Minister of Textiles of the new People's Republic of China from 1950.