- Who
- Reece Veatch, The Judy Garland Museum
- What
- 1,093 people
- Where
- United States (Grand Rapids)
- When
The largest gathering of people dressed as Wizard of Oz characters is 1,093 people and was achieved by the Judy Garland Museum and Reece Veatch (both USA) in Grand Rapids, Minnesota, USA, on 13 June 2014.