Bakaj (Бакай) is an Eastern European surname (sometimes transliterated to Bakay or Bakai)(see also Bakay). Notable people with the surname include:
- Elis Bakaj, Albanian footballer
- Edvan Bakaj, Albanian footballer
- Maria Grigoriievna Yatsenyuk (née Bakaj), former Ukrainian Prime Minister Arseniy Yatsenyuk's mother
- Andrew P. Bakaj, U.S. Attorney and lead counsel for the Whisteblower during the Impeachment Inquiry and the subsequent first Impeachment of President Donald Trump.