Namjoo () is a Persian surname. Notable people with this surname include: Mahmoud Namjoo (; 1918–1990), Iranian weightlifter Mousa Namjoo (; 1938–1981), Iranian military officer Majid Namjoo (; born 1963), Iranian politician Majid Namjoo-Motlagh (; born 1967), Iranian soccer player Mohsen Namjoo (; born 1976), Iranian singer-songwriter and player