Is there a toy story convention in north america?

The only verified information we have about "Toy Story" is that it is a known entity, likely referring to the popular animated film franchise. The second source discusses the literary device of a story within a story, which is unrelated to any fan events or conventions. Because neither source mentions a convention, event, or gathering specifically for Toy Story in North America, we cannot confirm its existence. If you are looking for fan gatherings, you might consider broader Pixar or animation conventions, but these are not confirmed as Toy Story‑specific from the evidence at hand. Further research into fan communities or official Disney/Pixar announcements would be required to determine if such a convention exists.