I want to fly to Thai, tell me if I'm only for a week, I don't need a visa? Maybe there are some documents that need to be provided at the entrance? I will be very grateful.

[Marina]

I want to fly to Thai, tell me if I'm only for a week, I don't need a visa? Maybe there are some documents that need to be provided at the entrance? I will be very grateful.

[Dima]

If you are a citizen of the Russian Federation, then you do not need a visa for up to 30 days, they put a stamp upon entry. It is required to have a return ticket with you - they do not always ask, but they have the right. If you need more than 30 days, then for 1900 baht already being in Thailand, you can extend it for another 7 days.
209172,2,If you do not trust the post of Thailand