Can you enter Thailand as a tourist multiple times in one year?

Yes

Some people are pointing out that they've successfully entered 7 times in a single year on a tourist visa or exemption and I have no doubt they are being truthful. However, if you are going to try to pull off something similar to what they have done, then I'd recommend you have a back-up destination plan ready to execute (e.g. Philippines, Cambodia, Vietnam etc.) Over the years I've seen numerous posts in this group and other groups, of people being denied entry because an immigration officer deemed that they were trying to live in TL longterm, on a tourist visa or exemption. Also and if you don't already know, you are technically required to have the cash equivalent of 20,000 Baht (currency from any country is fine) in your pocket, an onward ticket out of TL and proof of where you will be staying while in TL. Good luck, hope it all works out for you.

Yes.

No,

It depends (on your passport/nationality, the pattern of your entries/exits and the mood of your Immigration Officer).

I’ll add another comment about my experience this year.

I arrived end of January on a TR visa which I extended 60+30. I then went to Vietnam for the weekend then came back on visa exemption which i extended 30+30. After that I did a solo border run which was a terrible and expensive idea. Little did I know the land border I chose was known for militant IO’s. At first they denied me entry grilling me for my visit history in late 2022 early 2023, and said come back tomorrow (for various reasons I could not) so i gave some guy 5000 baht and he talked to someone in the IO office in which I was then granted entry on another exemption which i extended again 30+30.

After that I went back the UK for a little over a month. I then came back with a TR visa, I know I can get 60 days with exemption now but I thought a proper visa would look better.

Anyway going through immigration at bkk the IO said I didn’t need a tr now as it same length as exemption, he then asked where I was going and I said getting another flight to chiang mai, he warned me about flooding and I said I’m aware thank you then stamped me through.

I’d get a DTV but I don’t qualify as I don’t have a spare £10k just sat there lol.

I done lots times 1 year 7 times no problems

If that’s what you want, buy a visa

Yes, so long as it doesn’t look like your overall amount of time in the country appears as though you’re trying to defacto stay here long term. But you can visit as often as you like if it is just visiting and you have decent amounts of time out of the country too.

I entered 7 times last year and twice this year so far without visa

No one has a clue. Depends what mood the IO is in.

It’s six times a year by air.  Four times a year by overland crossing

There's no actual set limit, BUT, you will be questioned by immigration after a few back to back entries, and eventually refused entry, as they will want you to get a proper visa.

There’s no official limit and you can enter as many times as you like until the IO your standing in front of means that you’re misusing tourist solutions for long term stay in Thailand and need to apply for a proper visa according to your travel patterns.

Yes. Until an Immigration pfficer decides that yiou have spent too mich time in the country and are no longer a tourist and denys you entry,

You can enter as many times as the immigration officer you hand your passport to will let you enter.

No one can say how many times this equates to as it’s at the individual officers discretion.