No visa for Ukrainians up to 90 days of staying for 180 days period.

Due to the Migration law, you cannot stay more than 90 days of staying for 180 days period. You need a resident permit to stay more. To have a resident permit, you need to be working or studying in Turkey or to have an official marriage with a Turkish citizen.

Follow the link to find information on entry regime for foreigners entering Turkey: http://www.mfa.gov.tr/visa-information-for-foreigners.en.mfa.