Investigating censors (Chinese: 監察御史; lit. 'Monitoring & Investigating Royal Scribes/historians') were Censorate officials in imperial China's civil bureaucracy between the Sui (581–618) and Qing (1644–1912) dynasties. They were in charge of investigations and impeachment, including duties such as:

• gather complaints from the people
• review the handling of prisoners
• impeach officials for misconduct

Since the Yuan dynasty, investigating censors were also authorized to submit remonstrances or suggestions about the emperor's conduct or policies.