Found them on Lost Island at 25/76.6 top right side of the map on that island connected by a tiny bit of land. Around the biggest mountain!

The Griffin's turning radius is so big that if you position yourself correctly you can stand still and the Griffin will go in cirles around you forever.

There I was, staring into the face of death. I pointed my mighty crossbow at the beast head. And was eaten by a saber tooth. Make sure you clear out the area before taking the griffin on.

To find the griffin (lost island) you need to go to 33.8 75.4

For people who play on the Nintendo Switch on Ragnarok, you can find them at Waterwall of the Ancients and Upper Hidana. At least, that’s where I found mine. They can also spawn close to mountains, canyons, and maaaaayyyybbbee the tundra. Hope this helps!

Around mountain tops with no snow usually on ragnarok

If you have access to a snow owl, you can tame these with any crossbow! Just shoot it until it looks bloody, and heal it with the snow owl’s ability. Do it so that it heals quite a bit, but not so long that the torpor drains back empty. Then hop off the owl and continue shooting it with tranq arrows. I knocked a 140 with a 279 crossbow and using this method it had over half hp remaining once it finally went down.

Be prepared because it is real fast and does a LOT of damage and I mean a LOT so first you are somewhere that there is 1 of them (fact on my private server 1 griffin was near my base) second you knock it out with tranks (sorry I’m only 8 I can’t spell properly) third tame it with raw meat (if not idk)repeat to get more up if you think it was helpful

This bird is very aggressive and will fly away at high speeds when it's almost dead or about to be knocked out.

IT can be found on Valguero (like for Dododex)