| 07/17/1955 | Gibson Greeting Cards > Opens |
| 07/17/1955 | Wizard of Bras > Opens |
| 07/17/1955 | Peter Pan's Flight > Opens |
| 07/17/1955 | Casey Jr. Circus Train > Opens |
| 07/17/1955 | Red Wagon Inn > Opens |
| 07/17/1955 | Canal Boats of the World > Opens |
| 07/17/1955 | Main Street Cinema > Opens |
| 07/17/1955 | Emporium > Opens |
| 07/17/1955 | Carnation Ice Cream Parlor > Opens |
| 07/17/1955 | Adventureland > Opens |
| 07/17/1955 | Fantasyland > Opens |
| 07/17/1955 | Main Street, U.S.A. > Opens |
| 07/17/1955 | Tomorrowland > Opens |
| 07/17/1955 | Frontierland > Opens |
| 07/17/1955 | Disneyland Art Corner > Opens on Main St |
| 07/17/1955 | Wurlitzer Shop > Opens |
| 07/17/1955 | Rainbow Ridge Pack Mules > Opens |
| 07/17/1955 | Stage Coach > Opens |
| 07/17/1955 | Autopia > Opens |
| 07/17/1955 | Disneyland Railroad > Opens |
| 07/17/1955 | Mark Twain Riverboat > Opens |
| 07/17/1955 | Space Station X-1 > Opens |
| 07/17/1955 | Jungle Cruise > Opens |
| 07/17/1955 | Park > Opens |
| 07/17/1955 | Mad Tea Party > Opens |
| 07/17/1955 | Mr. Toad's Wild Ride > Opens |
| 07/18/1955 | Casey Jr. Circus Train > Shuts down for improvements |
| 07/22/1955 | Rocket to the Moon > Opens |
| 07/22/1955 | Candy Palace > Opens |
| 07/30/1955 | Tomorrowland Boats > Opens |
| 07/31/1955 | Casey Jr. Circus Train > Reopens |
| 08/00/1955 | Conestoga Wagons > Opens |
| 08/03/1955 | 20,000 Leagues Under the Sea > Opens |
| 08/09/1955 | Aunt Jemima Pancake House > Opens |
| 08/11/1955 | Casa de Fritos > Opens |
| 08/15/1955 | Tomorrowland Boats > Renamed to "Phantom Boats" |
| 08/15/1955 | Phantom Boats > Renamed from "Tomorrowland Boats" |
| 08/16/1955 | Dumbo Flying Elephants > Opens |
| 08/27/1955 | Mickey Mouse Club Theater > Opens |
| 08/29/1955 | Pirate Ship Restaurant > Opens |
| 09/00/1955 | Flight Circle > Opens |
| 09/05/1955 | Disneyland Art Corner > Moved to Tomorrowland |
| 09/16/1955 | Canal Boats of the World > Closes |
| 12/01/1955 | Maxwell House Coffee House > Opens |
| 12/25/1955 | Mike Fink Keel Boats > Opens |