You may enter Greece as described below:

1. Holders of a Ukrainian biometric passport may enter through all entry points (ports, land borders, airports) with a maximum stay of 90 days.
2. Holders of a Ukrainian passport without biometric features (old type) may enter from all entry points; a transit visa is required with a maximum stay of 90 days.

Attention: for the above cases, the National Police will stamp your passport with the date of entry.

1. Ukrainian citizens without travel documents may enter only from the Passport Control Department in Promachonas, where you will be issued a document by Ukrainian Embassy staff. This procedure allows you to stay for a maximum of 90 days.
2. In case your children do not have travel documents, National Police officials will note under the entry stamp on your own passport the number of minors you are accompanying.

Attention: In this case, you will have to show a certificate of marital status or a birth certificate of your children. If you do not have either of these documents, you must complete and submit a solemn declaration stating:

1. the number of children
2. their first name
3. surname
4. gender
5. date of birth.

If you have not received an entry stamp, your air tickets are also considered proof of entry.

Source: https://migration.gov.gr/wp-content/uploads/2022/03/Info-for-Displaced-People-from-Ukraine-Final-2-3-22.pdf