Are there any official toy story meet and greet events?

Based solely on the provided evidence, there is no record of officially sanctioned Toy Story meet‑and‑greet events. The Wikipedia source referenced discusses the characters in the Toy Story franchise but does not mention any fan or promotional gatherings. Consequently, we cannot confirm the existence of such events. If you are seeking opportunities to meet Toy Story characters, you might look at Disney or Pixar fan conventions, but those are not officially documented as “Toy Story” meet‑and‑greet events in the sources at hand.