The passport must be valid for the trip dates themselves, there is no other validity period for the Dominican Republic at the moment.

According to official requirements 6 months, but many fly there and with a shorter validity of the passport.

Visa to the Dominican Republic can be obtained only by those travelers whose validity period of their foreign passport expires not less than 1 month from the date of the end of the trip.

At the same time, it should be remembered that the validity of foreign passports for entry to a particular country often changes, so it is better to begin planning a trip with acquaintance with the latest information on the website of the consulate of the host country.

Even if you are going to have a rest in the country with a visa-free entry for Russians, please note that the length of stay without a visa is always limited. You must have a "time reserve" to go back before the passport expires.