A list of events that occurred on June 16 related to Six Flags.
- 1967 – Grand opening of Six Flags Over Georgia.
- 1995 – Grand opening of Six Flags Hurricane Harbor Los Angeles as the first of the Hurricane Harbor water parks.
- 2001 – Batwing opens at Six Flags America.
- 2006 – ACME Rock-n-Rocket opens at Six Flags Over Texas.
- 2022 - Several Six Flags parks participated in the World's Largest Roller Coaster Ride.