Train from Gare du Nord to Amsterdam Centraal

The advantage of booking with Thalys is that they only sell tickets that go direct to Amsterdam from Paris not requiring a change in Brussels and all tickets come with an assigned seat. NS is the national railroad of the Netherlands. Their trains only go as far as Brussels from Amsterdam but they sell tickets also on trains operated by Thalys originating from Paris Gare du Nord . NS trains don't require seat reservations and are less expensive but do not travel as high a speed as Thalys. I would go with Thalys in your case and the earlier you book the more you save.

Paris, naturellement! This is the France forum and the Gare du Nord is in Paris!!

I have updated my reply.

a lot of people go to Brussels / Ghent / Bruges on the way so it was a very reasonable question. May have seemed obvious for your pointing out the Gare du Nord and the France Forum, but those of us with experience here know it is best to try to find more details in order to give better help.

Sorry it rubbed you up the wrong way.

True, there is a Gare du Nord in Paris, but also in Brussels. Coming from Paris, the sequence is Gare du Midi (South Station), Gare Centrale, Gare du Nord, and then north to Antwerpen and the Netherlands.

Gare du Nord means North station and as such there are many Gare du Nords in Europe. Including one in Brussels.

But it is in general better to buy the tickets from the company that actually operates the trains, in this case Thalys. But if it is easier to get a group ticket from NS, I would not hesitate to use them.

When we rode Thalys to Bruxelles from Paris Gare du Nord the Gare-Midi was the end of the trip for us. I didn't realize that the Thalys route from there to Amsterdam included stops at stations in Brussels beyond where we left the train. My bad.
Thanks for the info that if we book on NS we might have to change trains in Brussels. Definitely not something we would prefer to have to deal with!

There is absolutely no need to avoid the website of NS. On https://www.nsinternational.com/ NS sells tickets for the direct Thalys train from Paris to Amsterdam as well as for Thalys to Brussels followed by NS train to Amsterdam. If you do a dummy booking, you will see it’s perfectly clear whether it’s a direct train or a train with 1 stop.

Thank you, Dutch-Traveller! I had seen the journey times and noticed that on the NS site many were the same as on Thalys.

They are the same journey time, because you are traveling on the exact same Thalys train. NS, the Dutch national railway company is one of the official ticket agents for Thalys trains between Paris and Amsterdam. In addition to that, NS operates the train line from Amsterdam to Brussels.
On any given Thalys train, there will be people who bought their tickets directly from Thalys, from NS, from NMBS (Belgian railway company) and/or from another ticket agent. They however all end up on the same Thalys train. There is no separate Thalys train only for people who bought their ticket at Thalys.com , so it doesn’t matter where you buy your tickets from.