Does my boyfriend from Mauritius need a visa to travel to Thailand for 19 nights?

Currently he will get 60 days, so no problem. When the rules change he will get 15 days. I don’t know if any extension can be arranged.

Safest thing would be to get a single entry tourist visa, which will give 60 days. That way you don’t have to worry about the rules changing.

As of today, Mauritian citizens are legally entitled to enter Thailand visa-free for up to 60 days under the current tourist visa exemption scheme.However, a major update is underway. The Thai Cabinet has approved a plan to roll back the 60-day rule. Once officially published in the Royal Gazette and fully implemented, the visa-free period for Mauritian passport holders will be reduced to a 15-day exemption. Because this rule change is pending but not yet active, you must carefully monitor the official rollout.

Expect 15 day notice period once published in Royal Gazette.

Google result asking thai embassy ...don't forget TDAC

Probably not required

Is that an approved country for 30 days free visa?

How old is he? 5 ?

As of today, he is eligible for a 60-day visa exemption.

If and when the proposed changes are implemented, that will be reduced to 15-day visa exemption for Mauritian passport holders. For a longer stay, he will need to apply for a tourist visa.

People travelling on a Mauritius passport are currently entitled to enter Thailand without a visa, visa exempt