No, it is not possible to transfer ownership of a WeChat account. WeChat does not provide an official method for transferring ownership of an account from one person to another? Each WeChat account is tied to an individual's mobile phone number, and the account cannot be transferred or assigned to someone else.
If you no longer wish to use your WeChat account, you can simply stop using it or deactivate it. However, it is important to note that once an account is deactivated, it cannot be reactivated, and you will lose access to all the contacts and data associated with that account.
If you want someone else to have access to your WeChat contacts or data, you can consider exporting and sharing the relevant information with them before deactivating your account.