Last name Tychyn (Tychyn 
, Тычин 
) , all over the world, is a very rare surname. The last name Tychyn is habitual in Kyrgyzstan, where it is a rare surname, Russia, where it is a very rare surname, and Ukraine, where it is an extremely rare surname. In absolute terms, it most frequently occurs in Russia, Kyrgyzstan, and the United States.