Dapper Day is a celebration of the well dressed. Not officially affiliated with Disney in any way (see DapperDay.com), this loosely-run event is a gathering of people who prefer to see visiting a theme park as a reason to dress in their finery. Often there is an Expo at the Disneyland Hotel on Saturday, followed by a day in the parks on Sunday.

Dapper Day generally has a minimal impact on crowds, but can occasionally draw several thousand to the park.