Tudu is a surname indicating a particular clan (paris) of the Santhals found in India, Nepal and Bangladesh. Notable people with surname Tudu include:
Arjun Tudu (born 1990), former Indian professional footballer Ashutosh Tudu, Indian politician Bapi Tudu (born 1998), Indian writer of Santali language Bishweswar Tudu, Indian politician Budhrai Tudu, Indian politician Jabamani Tudu (born 2000), Indian footballer Jamuna Tudu (born 1980), Indian environmental activist Laxman Tudu (born 1965), Indian politician Leba Chand Tudu (1949–2022), Indian politician Majhi Ramdas Tudu (1854–1951), India writer of Santali language Maina Tudu (born 1984), Indian writer of Santali language Manmohan Tudu (1922–2007), Indian politician Rabilal Tudu (1949–2026), Indian writer of Santali language and banker Rafayel Tudu (born 2001), Bangladeshi professional footballer Sandhya Rani Tudu, Indian politician Sebastian Tudu (1967), Bangladeshi Catholic priest Tala Tudu (born 1972), Indian writer of Santali language