Can you have a character themed birthday party at disneyland?

The only reliable source available about Disneyland in this context is a Wikipedia entry on Hong Kong Disneyland, which provides details about its location, ownership, and history. The entry does not mention any birthday party programs, character appearances for parties, or related services. Because no source confirms or describes such an event, we cannot state that character‑themed birthday parties are available at Disneyland. If you are interested in birthday party options, you would need to consult official Disneyland or Disney Parks websites, local park guides, or contact the parks directly for up‑to‑date information.