Sun Chu () was a Kuomintang officer from Shanxi. He served in the warlord Yan Xishan's provincial army. He achieved a very high rank in Yan's army, eventually commanding Yan's entire military police force, but owed his high position more to his loyalty and trustworthiness than to any particular military ability. Sun Chu was captured alive when the capital of Shanxi, Taiyuan, eventually fell to Communist forces in 1949.