Tymoshenko (Ukrainian: Тимошенко, romanized: Tymošenko) or Timoshenko (Russian: Тимошенко) is a surname of Ukrainian origin. It derives from the Christian name Timothy, and its Ukrainian derivatives, Tymofiy or Tymish. The surname, Tymoshenko, was created by adding the Ukrainian patronymic suffix, -enko, meaning someone of Tymish, usually the son of Tymish.